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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
| 48551. |
Alkylhalides have polar C-X bond and undergo nucleophilic substitution reactions. These give a variety of products with nucleophiles such as -OH, -OR, -NH_(2), -CN, -NC, -NO_(2), -ONO, RCOO^(-), etc. They undergo mainly two types of nucleophilic substitution reactions, S_(N)1 and S_(N)2. S_(N)1 reactions are two steps reactions which proceed through the formation of carbocations while S_(N)2 reactions are one step reaction which proceeds through the formation of transition state. The stability of carbocation and transition state determine the reactivity of alkyl halides. Write the main products A and B in the following reaction. A overset(KNO_(2))larr CH_(3)CH_(2)Br overset(AgNO_(2))to B. |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :A: `CH_(3)CH_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)-O-N=O` (<a href="https://interviewquestions.tuteehub.com/tag/ethyl-976035" style="font-weight:bold;" target="_blank" title="Click to know more about ETHYL">ETHYL</a> nitrite) <br/> B: `CH_(3)CH_(2)NO_(2)` (<a href="https://interviewquestions.tuteehub.com/tag/nitroethane-579077" style="font-weight:bold;" target="_blank" title="Click to know more about NITROETHANE">NITROETHANE</a>)</body></html> | |
| 48552. |
Alkylation of phenoxide anion with allyl chloride gives |
| Answer» <html><body><p>Phenyl allyl<br/>p-Allyl phenol<br/>o-Allyl phenol<br/>m-Allyl phenol</p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/phenoxideion-2220515" style="font-weight:bold;" target="_blank" title="Click to know more about PHENOXIDEION">PHENOXIDEION</a> is an ambident <a href="https://interviewquestions.tuteehub.com/tag/anion-876036" style="font-weight:bold;" target="_blank" title="Click to know more about ANION">ANION</a> with <a href="https://interviewquestions.tuteehub.com/tag/negative-570381" style="font-weight:bold;" target="_blank" title="Click to know more about NEGATIVE">NEGATIVE</a> charge on both oxygen and ortho carbon atom of the ring. Attack by oxygen gives ether, attack by the orthocarbanion gives o-allyl phenol. <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/DIN_OBJ_CHM_V02_C6_1_E01_478_S01.png" width="80%"/></body></html> | |
| 48553. |
Alkyl halides undergo nucleophilic substitution reactions in which halogen atom is replaced by other atom. RX + Nu:^(-) to Nu-R + X^(-) These reactions follow S_(N)1 and S_(N)2 type mechanism, in which S_(N)1 takes place in two steps while S_(N)2 takes place in single step. Due to their tendency to undergo substitution by a large number of nucleophiles, they form a variety of products. In which of the following pairs, the first compound is better S_(N)2 substrate ? |
| Answer» <html><body><p>1-bromo-1-methyl cyclohexane, <a href="https://interviewquestions.tuteehub.com/tag/cyclohexyl-2040870" style="font-weight:bold;" target="_blank" title="Click to know more about CYCLOHEXYL">CYCLOHEXYL</a> <a href="https://interviewquestions.tuteehub.com/tag/bromide-904626" style="font-weight:bold;" target="_blank" title="Click to know more about BROMIDE">BROMIDE</a><br/>1-iodo-<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>, 2-dimethyl propane, <a href="https://interviewquestions.tuteehub.com/tag/isopropyl-1052512" style="font-weight:bold;" target="_blank" title="Click to know more about ISOPROPYL">ISOPROPYL</a> iodide<br/>2, 2,-dimethyl-1-chlorobutane, 2-chloro butane<br/>isopropyl bromide, 2-bromobutane</p>Answer :D</body></html> | |
| 48554. |
Alkyl halides undergo nucleophilic substitution reactions in which halogen atom is replaced by other atom. RX + Nu:^(-) to Nu-R + X^(-) These reactions follow S_(N)1 and S_(N)2 type mechanism, in which S_(N)1 takes place in two steps while S_(N)2 takes place in single step. Due to their tendency to undergo substitution by a large number of nucleophiles, they form a variety of products. In which of the following pairs, the first nucleophile is stronger? |
| Answer» <html><body><p>`Cl^(-), I^(-)`<br/>`CH_(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)OH, CH_(3)S^(-)`<br/>`(CH_(3)CH_(2))_(2)<a href="https://interviewquestions.tuteehub.com/tag/nh-570695" style="font-weight:bold;" target="_blank" title="Click to know more about NH">NH</a>, (CH_(3)CH_(2))_(3)<a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>`<br/>`(CH_(3))_(2)O, (CH_(3))_(3)N`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :C</body></html> | |
| 48555. |
Alkyl halides undergo nucleophilic substitution reactions in which halogen atom is replaced by other atom. RX + Nu:^(-) to Nu-R + X^(-) These reactions follow S_(N)1 and S_(N)2 type mechanism, in which S_(N)1 takes place in two steps while S_(N)2 takes place in single step. Due to their tendency to undergo substitution by a large number of nucleophiles, they form a variety of products. Which of the following is least reactive towards S_(N)2 mechanism ? |
| Answer» <html><body><p>`(CH_(3))_(2)CHCH_(2)<a href="https://interviewquestions.tuteehub.com/tag/br-390993" style="font-weight:bold;" target="_blank" title="Click to know more about BR">BR</a>`<br/>`(CH_(3))_(3)<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a> CH_(2)Br`<br/>`CH_(3)CH_(2)Br`<br/>`(CH_(3))_(2)CHBr`</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 48556. |
Alkyl halides react with dialkyl copper reagent to give |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/alkyl-371497" style="font-weight:bold;" target="_blank" title="Click to know more about ALKYL">ALKYL</a> <a href="https://interviewquestions.tuteehub.com/tag/copper-933790" style="font-weight:bold;" target="_blank" title="Click to know more about COPPER">COPPER</a> halides<br/>Alkenes <br/>Alkenyl halides<br/><a href="https://interviewquestions.tuteehub.com/tag/alkanes-14590" style="font-weight:bold;" target="_blank" title="Click to know more about ALKANES">ALKANES</a> </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :Alkanes <a href="https://interviewquestions.tuteehub.com/tag/preparations-18174" style="font-weight:bold;" target="_blank" title="Click to know more about PREPARATIONS">PREPARATIONS</a></body></html> | |
| 48557. |
Alkylhalides onreductionwiththe Zn-Cucoupleand alcohol, givecorrespondingalkanes . Theorderof reactivityof alkylhalidesthereactiionis __________. |
| Answer» <html><body><p>R-ClgtR-BrgtR-I<br/>R-BrgtR-ClgtR-I<br/>R-ClgtR-IgtR-Br<br/>R-IgtR-BrgtR-Cl</p>Answer :D</body></html> | |
| 48558. |
Alkyl halides can be obtained by all methods except : |
| Answer» <html><body><p>`CH_(3)CH_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)OH+HCl//ZnCl_(2)to`<br/>`CH_(3)-CH_(2)-CH_(3)-CH_(2)overset(Cl_(2)//UVlight)to`<br/>`C_(5)H_(5)OH +NaCl to`<br/>`CH_(3)COOAg+Br//C Cl_(<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>)to`</p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/MSC_ORG_CHM_C05C_E01_246_S01.png" width="80%"/></body></html> | |
| 48559. |
Alkyl halides are prepared from alcohol by treating with: |
| Answer» <html><body><p>`HCl+ZnCl_(2)`<br/>`H_(2)SO_(4)+<a href="https://interviewquestions.tuteehub.com/tag/ki-533104" style="font-weight:bold;" target="_blank" title="Click to know more about KI">KI</a>`<br/>`NaCl+H_(2)SO_(4)`<br/><a href="https://interviewquestions.tuteehub.com/tag/none-580659" style="font-weight:bold;" target="_blank" title="Click to know more about NONE">NONE</a> of these</p>Answer :A</body></html> | |
| 48560. |
Alkoxides of beryllium [Be(OR)_(2)]_(6) usually have associated strutures with both mu_(2) - bridging and terminal OR groups. For example [Be(OCH_(3))_(2)]_(6) is a high polymer insoluble in hydrocarbon solvents. On the other hand, tertiary - butoxy derivative is less condensed being only a trimer [Be(O-t-Bu)_(2)]_(3) The vapour phase, BeCI_(2) is |
| Answer» <html><body><p>two coordinate with lienar <a href="https://interviewquestions.tuteehub.com/tag/structure-1230280" style="font-weight:bold;" target="_blank" title="Click to know more about STRUCTURE">STRUCTURE</a><br/>three coordinate with <a href="https://interviewquestions.tuteehub.com/tag/planar-1155488" style="font-weight:bold;" target="_blank" title="Click to know more about PLANAR">PLANAR</a> triangular structure<br/>four coordinate with regular tetrahedral structure<br/>four coordinate with irregular tetrahedral <a href="https://interviewquestions.tuteehub.com/tag/polymeric-2225249" style="font-weight:bold;" target="_blank" title="Click to know more about POLYMERIC">POLYMERIC</a> structure</p>Solution :In vapour state `BeCI_(2)` is three coordinate with plannar triangular structure</body></html> | |
| 48561. |
Alkoxides of beryllium [Be(OR)_(2)]_(6) usually have associated strutures with both mu_(2) - bridging and terminal OR groups. For example [Be(OCH_(3))_(2)]_(6) is a high polymer insoluble in hydrocarbon solvents. On the other hand, tertiary - butoxy derivative is less condensed being only a trimer [Be(O-t-Bu)_(2)]_(3)The C - Be - C angle [Be(CH_(3))_(2)]_(n) is |
| Answer» <html><body><p>Equal to CI - Be - C angle in `[Be(CI_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>))]_(n)`<br/>Less than CI - Be - C angle in `[Be(CI_(2))]_(n)`<br/>Greater than the CI - Be - C angle in `[Be(CI_(2))]_(n)`<br/>NO <a href="https://interviewquestions.tuteehub.com/tag/reaction-22747" style="font-weight:bold;" target="_blank" title="Click to know more about REACTION">REACTION</a> to CI - Be - C angle in `[Be(CI_(2))]_(n)`</p>Solution :The C - Be - C angle in `[Be (CH_(3))_(2)]_(n)` is less than CI - Be - C angle in `[Be (CI_(2))]_(n)` <a href="https://interviewquestions.tuteehub.com/tag/due-433472" style="font-weight:bold;" target="_blank" title="Click to know more about DUE">DUE</a> to electronegative <a href="https://interviewquestions.tuteehub.com/tag/difference-951394" style="font-weight:bold;" target="_blank" title="Click to know more about DIFFERENCE">DIFFERENCE</a></body></html> | |
| 48562. |
Alkoxides of beryllium [Be(OR)_(2)]_(6) usually have associated strutures with both mu_(2) - bridging and terminal OR groups. For example [Be(OCH_(3))_(2)]_(6) is a high polymer insoluble in hydrocarbon solvents. On the other hand, tertiary - butoxy derivative is less condensed being only a trimer [Be(O-t-Bu)_(2)]_(3) With bulky alkoxide groups the beryllium compound exists as monomers which have |
| Answer» <html><body><p>Linear structure with `180^(@)` <a href="https://interviewquestions.tuteehub.com/tag/bond-900583" style="font-weight:bold;" target="_blank" title="Click to know more about BOND">BOND</a> angle<br/>Trigonal <a href="https://interviewquestions.tuteehub.com/tag/planar-1155488" style="font-weight:bold;" target="_blank" title="Click to know more about PLANAR">PLANAR</a> structure with `120^(@)` bond angle<br/>Tetrahedral structure with `190^(@)28^(3)` bond angle<br/>Distorted tetrahedral structure with more than `109^(@)28^(1)` in interal <a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a> - Be - C bond</p>Solution :Beryllium compounds which exists as <a href="https://interviewquestions.tuteehub.com/tag/monomers-1101047" style="font-weight:bold;" target="_blank" title="Click to know more about MONOMERS">MONOMERS</a> have linear structures with bond angle `180^(@)C`</body></html> | |
| 48563. |
Alkenes usually show which type of reaction |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/addition-367641" style="font-weight:bold;" target="_blank" title="Click to know more about ADDITION">ADDITION</a><br/>Substitution<br/>Elimination<br/>Superposition</p>Solution :Alkenes are <a href="https://interviewquestions.tuteehub.com/tag/unsaturated-721485" style="font-weight:bold;" target="_blank" title="Click to know more about UNSATURATED">UNSATURATED</a> <a href="https://interviewquestions.tuteehub.com/tag/hydrocarbon-1034072" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROCARBON">HYDROCARBON</a> having double <a href="https://interviewquestions.tuteehub.com/tag/bond-900583" style="font-weight:bold;" target="_blank" title="Click to know more about BOND">BOND</a> so generally gives addition <a href="https://interviewquestions.tuteehub.com/tag/reaction-22747" style="font-weight:bold;" target="_blank" title="Click to know more about REACTION">REACTION</a>.</body></html> | |
| 48564. |
Alkenes undergo electrophilic addition with many reagents like HX, H_2O, HOCI etc. Except in the case of addition of X_2^(-) in other additions carbocation is formed as intermediate. The rate of such reactions depends on the stability of carbocation. Rearrangements and ring expansion are also common in such reactions. Propene on reaction with HI in presence of peroxide will give |
| Answer» <html><body><p>2-iodo <a href="https://interviewquestions.tuteehub.com/tag/propane-1169790" style="font-weight:bold;" target="_blank" title="Click to know more about PROPANE">PROPANE</a><br/> 1-iodopropane<br/>Both (a) & (b)<br/>none </p>Solution :Peroxide <a href="https://interviewquestions.tuteehub.com/tag/effect-966056" style="font-weight:bold;" target="_blank" title="Click to know more about EFFECT">EFFECT</a> will not be present in <a href="https://interviewquestions.tuteehub.com/tag/hi-479908" style="font-weight:bold;" target="_blank" title="Click to know more about HI">HI</a></body></html> | |
| 48565. |
Alkenes undergo electrophilic addition with many reagents like HX, H_2O, HOCI etc. Except in the case of addition of X_2^(-) in other additions carbocation is formed as intermediate. The rate of such reactions depends on the stability of carbocation. Rearrangements and ring expansion are also common in such reactions. 1-methylcyclohex-1-ene is subjected to hydro-boration oxidation. The product is |
| Answer» <html><body><p> Cis-2-methyl <a href="https://interviewquestions.tuteehub.com/tag/cyclohexanol-942564" style="font-weight:bold;" target="_blank" title="Click to know more about CYCLOHEXANOL">CYCLOHEXANOL</a> <br/>Trans-2-methyl cyclohexanol <br/>1-methyl cyclohexanol <br/>Both a & b</p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/hydroboration-2721828" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROBORATION">HYDROBORATION</a> <a href="https://interviewquestions.tuteehub.com/tag/oxidation-588780" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDATION">OXIDATION</a> is syn <a href="https://interviewquestions.tuteehub.com/tag/addition-367641" style="font-weight:bold;" target="_blank" title="Click to know more about ADDITION">ADDITION</a> <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E03_270_S01.png" width="80%"/></body></html> | |
| 48566. |
Alkenes undergo electrophilic addition with many reagents like HX, H_2O, HOCI etc. Except in the case of addition of X_2^(-) in other additions carbocation is formed as intermediate. The rate of such reactions depends on the stability of carbocation. Rearrangements and ring expansion are also common in such reactions. The correct order of reactivity of the following towards electrophilic addition is P) Vinyl chlorideQ) Pent-2-ene R) 3-methyl pent-2-eneS) 2,3-dimethyl but-2-ene |
| Answer» <html><body><p>`P gt <a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a> gt R gt S `<br/>`S gt Q gt R gt P`<br/>`S gt R gt Q gt P`<br/>`R gt S gt Q gt P` </p>Solution :P with `Cl` is least reactive as it exerts -I effect and destablises the intermediate carbocations <a href="https://interviewquestions.tuteehub.com/tag/formed-464209" style="font-weight:bold;" target="_blank" title="Click to know more about FORMED">FORMED</a> <a href="https://interviewquestions.tuteehub.com/tag/among-374776" style="font-weight:bold;" target="_blank" title="Click to know more about AMONG">AMONG</a> others the carbocations formed from S, R, Q are <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E03_269_S01.png" width="80%"/> <br/> Stability <a href="https://interviewquestions.tuteehub.com/tag/decreases-946143" style="font-weight:bold;" target="_blank" title="Click to know more about DECREASES">DECREASES</a> a number of `alpha-H` atom decreases reactively decreases.</body></html> | |
| 48567. |
Alkenes are also known as |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/olefins-585413" style="font-weight:bold;" target="_blank" title="Click to know more about OLEFINS">OLEFINS</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/paraffins-595737" style="font-weight:bold;" target="_blank" title="Click to know more about PARAFFINS">PARAFFINS</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/aliphatic-1973026" style="font-weight:bold;" target="_blank" title="Click to know more about ALIPHATIC">ALIPHATIC</a> <a href="https://interviewquestions.tuteehub.com/tag/saturated-3007745" style="font-weight:bold;" target="_blank" title="Click to know more about SATURATED">SATURATED</a> <a href="https://interviewquestions.tuteehub.com/tag/hydrocarbons-15156" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROCARBONS">HYDROCARBONS</a> <br/>Arenes</p>Answer :A</body></html> | |
| 48568. |
Alkenes andalkynes are unsaturatedhydrocarbons and undergo electrophilic addition reactions. In alkenes, the addition occursin one step while in alkynes the addition occurs in twosteps. Alkenes show geometrical isomerism but alkynes do not. Alkynes are more acidic than alkenes which are more acidic than alkanes. Both alkenes and alkynes can be preparedby the electrolysisofsodium orpotassium salts of carboxylic acids. Which of the followingreacts with [Cu(NH_(3))_(2)]OH ? (i) But-1-yne(ii) But-2-yne(iii) But-1-ene |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :(i) But-1-yne</body></html> | |
| 48569. |
Alkene R-CH=CH_(2) react with B_(2)H_(6) in the presence of H_(2)O_(2) to give |
| Answer» <html><body><p>`R-<a href="https://interviewquestions.tuteehub.com/tag/underset-3243992" style="font-weight:bold;" target="_blank" title="Click to know more about UNDERSET">UNDERSET</a>(O)underset(||)(<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a>)-CH_(3)`<br/>`R-underset(<a href="https://interviewquestions.tuteehub.com/tag/oh-585115" style="font-weight:bold;" target="_blank" title="Click to know more about OH">OH</a>)underset(|)(CH)-underset(OH)underset(|)(CH_(2))`<br/>`R-CH_(2)-CHO`<br/>`R-CH_(2)-CH_(2)-OH`</p>Solution :`R-CH=CH_(2)underset(H_(2)O_(2)//OH^(-))overset(B_(2)H_(6))rarrR-CH_(2)-CH_(2)-OH` <br/> This is called as Hydroboration <a href="https://interviewquestions.tuteehub.com/tag/oxidation-588780" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDATION">OXIDATION</a>.</body></html> | |
| 48570. |
Alkene and alkyne gives electrophilic addition reaction, while benzene gives electrophilic substitution reaction. Give reason. |
| Answer» <html><body><p></p>Solution :Due to resonance effect, wide spreaded delocalised `pi`-electron and aromaticity benzene <a href="https://interviewquestions.tuteehub.com/tag/ring-1189545" style="font-weight:bold;" target="_blank" title="Click to know more about RING">RING</a> is stable, so in benzene substitution reaction occurs easily with respect to addition reaction. Also <a href="https://interviewquestions.tuteehub.com/tag/breaking-903912" style="font-weight:bold;" target="_blank" title="Click to know more about BREAKING">BREAKING</a> of `pi`-<a href="https://interviewquestions.tuteehub.com/tag/bond-900583" style="font-weight:bold;" target="_blank" title="Click to know more about BOND">BOND</a> in benzene is <a href="https://interviewquestions.tuteehub.com/tag/difficult-439335" style="font-weight:bold;" target="_blank" title="Click to know more about DIFFICULT">DIFFICULT</a> so benzene gives substitution reaction. <br/> In substitution reaction, stability of benzene ring remains, sosubstitution reaction occurs easily in comparison to addition reaction. <br/> In alkene and alkyne, `pi`-bond easily breaks and hence, it favour the addition reaction.</body></html> | |
| 48571. |
Alkene can be converted in to oxirane by using which of the following |
| Answer» <html><body><p>`O_2// <a href="https://interviewquestions.tuteehub.com/tag/ag-362275" style="font-weight:bold;" target="_blank" title="Click to know more about AG">AG</a> `<br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E03_146_O02.png" width="30%"/> <br/> MMPP (magnesium monoperoxy <a href="https://interviewquestions.tuteehub.com/tag/phthalate-599986" style="font-weight:bold;" target="_blank" title="Click to know more about PHTHALATE">PHTHALATE</a>)<br/>All of these</p>Solution :In the presence of <a href="https://interviewquestions.tuteehub.com/tag/peracids-2920523" style="font-weight:bold;" target="_blank" title="Click to know more about PERACIDS">PERACIDS</a> <a href="https://interviewquestions.tuteehub.com/tag/insection-1045794" style="font-weight:bold;" target="_blank" title="Click to know more about INSECTION">INSECTION</a> takes <a href="https://interviewquestions.tuteehub.com/tag/place-1155224" style="font-weight:bold;" target="_blank" title="Click to know more about PLACE">PLACE</a>.</body></html> | |
| 48572. |
Alkene(A) and (B) yield the same alcohol (C) on hydration. On vigorous oxidation with KMnO_4, (A) gives a carbonyl compound (D) and an acid (E) each containing four carbon atoms. On the other hand (B) gives an aicd (F) and a carbonyl compound (G), In (G), no two identical groups are attached to the same carbon atom. Give structures of (A) to (G) with proper resoning. |
| Answer» <html><body><p></p>Solution :Akene (A) on <a href="https://interviewquestions.tuteehub.com/tag/oxidation-588780" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDATION">OXIDATION</a> gives a <a href="https://interviewquestions.tuteehub.com/tag/carbonyl-413350" style="font-weight:bold;" target="_blank" title="Click to know more about CARBONYL">CARBONYL</a> compound (D) and an acid (E). Each having for carbon atoms. <a href="https://interviewquestions.tuteehub.com/tag/thus-2307358" style="font-weight:bold;" target="_blank" title="Click to know more about THUS">THUS</a>, the probable structure of (A) may be, <br/> `CH_3-CH_2underset(CH_3)underset(|)C=CH-CH_2-CH_3` or `CH_3-CH_2-underset(CH_3)underset(|)C=CH-underset(CH_3)underset(|)CH-CH_3`. <br/> Alkene (B) gives an acid (F) and a carbonyl compound (G). Alkene (B) gives same alcohol on hydration and is <a href="https://interviewquestions.tuteehub.com/tag/isomeric-2751711" style="font-weight:bold;" target="_blank" title="Click to know more about ISOMERIC">ISOMERIC</a> to (A) the carbonyl compound (G) has no carbon atom having two identical groups. Thus, the structure of (B) should be , <br/>`underset((B))(CH_3-CH=underset(CH_3)underset(|)C-CH_2-CH_2-CH_2-CH_3)` <br/> The alkene (A) should also posses the corresponding structure, thus , structures of (A) is ,`underset((A))(CH_3-CH_2-underset(CH_3)underset(|)C=CH-CH_2-CH_2-CH_3)` <br/> <a href="https://interviewquestions.tuteehub.com/tag/reactions-20919" style="font-weight:bold;" target="_blank" title="Click to know more about REACTIONS">REACTIONS</a> : <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/GRB_ORG_CHM_P2_S01_C17_004_S01.png" width="80%"/></body></html> | |
| 48573. |
Alkanes with how many carbons are solids at rooms temperature |
| Answer» <html><body><p>above `C_(<a href="https://interviewquestions.tuteehub.com/tag/17-278001" style="font-weight:bold;" target="_blank" title="Click to know more about 17">17</a>)`<br/>above `C_(10)`<br/>above `C_(<a href="https://interviewquestions.tuteehub.com/tag/8-336412" style="font-weight:bold;" target="_blank" title="Click to know more about 8">8</a>)`<br/>above `C_(4)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html> | |
| 48574. |
Alkanes with how many carbons are solids at room temperature |
| Answer» <html><body><p>Above `C_(<a href="https://interviewquestions.tuteehub.com/tag/17-278001" style="font-weight:bold;" target="_blank" title="Click to know more about 17">17</a>)`<br/>Above `C_(<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>)`<br/>Above `C_8`<br/>Above `C_4` </p>Solution :Above `C_(17)` are <a href="https://interviewquestions.tuteehub.com/tag/solids-1216975" style="font-weight:bold;" target="_blank" title="Click to know more about SOLIDS">SOLIDS</a> at <a href="https://interviewquestions.tuteehub.com/tag/room-25779" style="font-weight:bold;" target="_blank" title="Click to know more about ROOM">ROOM</a> temperature</body></html> | |
| 48575. |
Alkanes mainly undergo substitution reactions using the free - radical mechanism. |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :T</body></html> | |
| 48576. |
Alkanesmainlyexhibit ______reaction. |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/substitution-1231654" style="font-weight:bold;" target="_blank" title="Click to know more about SUBSTITUTION">SUBSTITUTION</a></body></html> | |
| 48577. |
Alkanes having odd carbons cannot be prepared in A) Wurtz reaction B) Frankland reaction C) Kolbe's electrolysis D) Sabatier-sendersen reaction |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>, <a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a> and D<br/>A, C and D<br/>A, B and D<br/>A, B and C</p>Answer :B</body></html> | |
| 48578. |
Alkanes containing even number of carbon atoms possess higher melting points than those containing odd number of carbon atoms. |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :T</body></html> | |
| 48579. |
Why do alkynes not show geometrical isomerism ? |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :T</body></html> | |
| 48580. |
Alkanes can be prepared from sodium (or) potassium salts of carboxylic acid by using Kolbe'selectrolysis or decarboxylation with the help of sodalime. (NaOH and CaO)Sodium salt of carboxylic acid required to prepare Butane by Kolbe's electrolysis |
| Answer» <html><body><p><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E02_040_O01.png" width="30%"/> <br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E02_040_O02.png" width="30%"/> <br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E02_040_O03.png" width="30%"/> <br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E02_040_O04.png" width="30%"/> </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E02_040_S01.png" width="80%"/></body></html> | |
| 48581. |
Alkanes can be prepared from sodium (or) potassium salts of carboxylic acid by using Kolbe'selectrolysis or decarboxylation with the help of sodalime. (NaOH and CaO)Which of the Alkane cannot be prepared by Kolbe's electrolysis |
| Answer» <html><body><p>`C_4H_(10)`<br/>`C_2H_6`<br/>`CH_4`<br/>`C_6H_(14)` </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :Methane cannot be prepared by Kolbe.s electrolysis <a href="https://interviewquestions.tuteehub.com/tag/smallest-646176" style="font-weight:bold;" target="_blank" title="Click to know more about SMALLEST">SMALLEST</a> <a href="https://interviewquestions.tuteehub.com/tag/alkane-853353" style="font-weight:bold;" target="_blank" title="Click to know more about ALKANE">ALKANE</a> that can be prepared in <a href="https://interviewquestions.tuteehub.com/tag/ethane-975817" style="font-weight:bold;" target="_blank" title="Click to know more about ETHANE">ETHANE</a>. <br/> <img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_TRG_AO_CHE_XI_V01_D_C04_E02_039_S01.png" width="80%"/></body></html> | |
| 48582. |
Alkanes burn with a smoky flame. |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/f-455800" style="font-weight:bold;" target="_blank" title="Click to know more about F">F</a></body></html> | |
| 48583. |
Alkanes are also referred to as............. and have the general formula …… . |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<a href="https://interviewquestions.tuteehub.com/tag/paraffins-595737" style="font-weight:bold;" target="_blank" title="Click to know more about PARAFFINS">PARAFFINS</a>, `C_nH_(<a href="https://interviewquestions.tuteehub.com/tag/2n-300431" style="font-weight:bold;" target="_blank" title="Click to know more about 2N">2N</a> + <a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)`</body></html> | |
| 48584. |
Alkane may be prepared from alkyl halide by Wurtz method where alkyl halide reacted with Na in presence of ether . 2R - X underset(Delta)overset("Ether")to R - R + 2NaX Which of the following compound is most reactive for Wurtz reaction ? |
| Answer» <html><body><p>`CH_3-<a href="https://interviewquestions.tuteehub.com/tag/overset-2905731" style="font-weight:bold;" target="_blank" title="Click to know more about OVERSET">OVERSET</a>(<a href="https://interviewquestions.tuteehub.com/tag/br-390993" style="font-weight:bold;" target="_blank" title="Click to know more about BR">BR</a>)overset(|)CH-CH_3`<br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E02_045_O02.png" width="30%"/> <br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E02_045_O03.png" width="30%"/> <br/>`CH_3-<a href="https://interviewquestions.tuteehub.com/tag/underset-3243992" style="font-weight:bold;" target="_blank" title="Click to know more about UNDERSET">UNDERSET</a>(CH_3)underset(|)overset(CH_3)overset(|)C-Br`</p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E02_045_S01.png" width="80%"/></body></html> | |
| 48585. |
Alkane may be prepared from alkyl halide by Wurtz method where alkyl halide reacted with Na in presence of ether . 2R - X underset(Delta)overset("Ether")to R - R + 2NaX CH_3 - underset(CH_3)underset(|) overset(CH_3)overset(|)C-Br underset(Delta)overset("Na/ether")to Major product : |
| Answer» <html><body><p><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E02_044_O01.png" width="30%"/> <br/>`CH_3-<a href="https://interviewquestions.tuteehub.com/tag/underset-3243992" style="font-weight:bold;" target="_blank" title="Click to know more about UNDERSET">UNDERSET</a>(CH_3)underset(|)<a href="https://interviewquestions.tuteehub.com/tag/overset-2905731" style="font-weight:bold;" target="_blank" title="Click to know more about OVERSET">OVERSET</a>(CH_3)overset(|)C-underset(CH_3)underset(|)overset(CH_3)overset(|)C-CH_3`<br/>`CH_3-underset(CH_3)underset(|)overset(CH_3)overset(|)-CH_2CH_3`<br/>No <a href="https://interviewquestions.tuteehub.com/tag/reaction-22747" style="font-weight:bold;" target="_blank" title="Click to know more about REACTION">REACTION</a> </p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E02_044_S01.png" width="80%"/></body></html> | |
| 48586. |
CH_3 - CH_2 - Cl underset(Delta)overset("Na/ether")(to)which of the following products may not be formed |
| Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :`CH_4`</body></html> | |
| 48587. |
"Alkane compounds normally resist the oxidation", what it mean ? |
| Answer» <html><body><p></p>Solution :Formation of oxidized product by <a href="https://interviewquestions.tuteehub.com/tag/decomposition-946042" style="font-weight:bold;" target="_blank" title="Click to know more about DECOMPOSITION">DECOMPOSITION</a> of C-H bond in <a href="https://interviewquestions.tuteehub.com/tag/alkane-853353" style="font-weight:bold;" target="_blank" title="Click to know more about ALKANE">ALKANE</a> is not an easy process and <a href="https://interviewquestions.tuteehub.com/tag/hence-484344" style="font-weight:bold;" target="_blank" title="Click to know more about HENCE">HENCE</a> we can <a href="https://interviewquestions.tuteehub.com/tag/consider-2017521" style="font-weight:bold;" target="_blank" title="Click to know more about CONSIDER">CONSIDER</a> alkane to resist the <a href="https://interviewquestions.tuteehub.com/tag/oxidation-588780" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDATION">OXIDATION</a>.</body></html> | |
| 48588. |
"Alkane compound resist the oxidation", so what is your opinion for the following reaction ? C_(4)H_(10(g)) + (13)/(2)O_(2(g)) rarr 4CO_(2(g)) + 5H_(2)O_((l)) |
| Answer» <html><body><p></p>Solution :The given <a href="https://interviewquestions.tuteehub.com/tag/reaction-22747" style="font-weight:bold;" target="_blank" title="Click to know more about REACTION">REACTION</a> is of combustion of butane. Combustion is also an oxidation reaction, so in this reaction also oxidation occur. <br/> The negativity of C (2.5) and H (2.1) in reactant `C_(4)H_(<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>)`, so negativity of carbon is more and so it possess negativestate, while in product `CO_(2)`, carbon possess +4 oxidation state. So in this reaction oxidation number of carbon <a href="https://interviewquestions.tuteehub.com/tag/increases-1040626" style="font-weight:bold;" target="_blank" title="Click to know more about INCREASES">INCREASES</a> and so this reaction is of oxidation. "Combustion of all alkane is ultimately oxidation reaction only".</body></html> | |
| 48589. |
Alkane (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted into another alkane containing less than four carbon atoms. (A) is |
| Answer» <html><body><p></p>Solution :(i)Let A beR-H, on <a href="https://interviewquestions.tuteehub.com/tag/bromination-904631" style="font-weight:bold;" target="_blank" title="Click to know more about BROMINATION">BROMINATION</a> , it will give R-Br <br/> `underset"Alkane (A)" (R-H)+ Br_2 overset"hv"to underset"Alkyl bromide"(R-Br)+<a href="https://interviewquestions.tuteehub.com/tag/hbr-479388" style="font-weight:bold;" target="_blank" title="Click to know more about HBR">HBR</a> ` <br/> (ii)Now Wurtz reaction of alkyl bromide gives alkane (B) <br/> `R-Br + 2Na + Br-R overset"Heat"to underset"Alkane (B)"(R-R) + 2NaBr` <br/> (iii)<a href="https://interviewquestions.tuteehub.com/tag/since-644476" style="font-weight:bold;" target="_blank" title="Click to know more about SINCE">SINCE</a> alkane (B) contains less than four carbon atoms, therefore , R can have only one carbon atom. In other words , R is `CH_3` and hence alkane (A) is `CH_4` <br/> All the reactions <a href="https://interviewquestions.tuteehub.com/tag/involved-7257329" style="font-weight:bold;" target="_blank" title="Click to know more about INVOLVED">INVOLVED</a> here are : <br/> `underset"Methane (A)"(CH_4)underset"-HBr"overset(Br_2)to underset"Methyl bromide "(CH_3Br) underset"(Wurtz reaction)"overset"Na, Dry ether"to underset"(Less than 4 carbon atoms )"(CH_3-CH_3)`</body></html> | |
| 48590. |
Alkaline KMnO_(4) solution converts acetylene into |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/acetaldehyde-366764" style="font-weight:bold;" target="_blank" title="Click to know more about ACETALDEHYDE">ACETALDEHYDE</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/oxalic-2906163" style="font-weight:bold;" target="_blank" title="Click to know more about OXALIC">OXALIC</a> acid<br/>Acetic aci<br/>Glycol</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 48591. |
Alkaline hydrolysis of urea with dill. NaOH gives |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/biuret-898667" style="font-weight:bold;" target="_blank" title="Click to know more about BIURET">BIURET</a> and ammonia<br/>Ammonia and <a href="https://interviewquestions.tuteehub.com/tag/sodium-1215510" style="font-weight:bold;" target="_blank" title="Click to know more about SODIUM">SODIUM</a> carbonate<br/>Nitrogen and sodium carbonate<br/>Ammonia and cyanuric acid</p>Solution :<img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/DIN_OBJ_CHM_V02_C7_2_E01_193_S01.png" width="80%"/></body></html> | |
| 48592. |
Alkaline earth metals produce ....... color on solubilizing in ammonia solution. |
| Answer» <html><body><p>Brown<br/>Light green<br/>Dark blue<br/>Light <a href="https://interviewquestions.tuteehub.com/tag/red-613739" style="font-weight:bold;" target="_blank" title="Click to know more about RED">RED</a> </p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html> | |
| 48593. |
Alkaline earth metals form basic hydroxides. The metal hydroxide which is most basic is ___________ |
| Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/mg-1095425" style="font-weight:bold;" target="_blank" title="Click to know more about MG">MG</a>(OH)_2`<br/>`Ca(OH)_2`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/sr-650879" style="font-weight:bold;" target="_blank" title="Click to know more about SR">SR</a>(OH)_2`<br/>`Ba(OH)_2`</p>Answer :D</body></html> | |
| 48594. |
Alkaline earth metals form halides of the type MX_(2) Which is false about them ? |
| Answer» <html><body><p>They can be <a href="https://interviewquestions.tuteehub.com/tag/prepared-1163605" style="font-weight:bold;" target="_blank" title="Click to know more about PREPARED">PREPARED</a> by the direct reaction of <a href="https://interviewquestions.tuteehub.com/tag/metal-1094457" style="font-weight:bold;" target="_blank" title="Click to know more about METAL">METAL</a> and halogens<br/>bertylliumhalidesare covalentwhilethe halidesof otherelementsare ionic <br/>Beryllium halides are covalent from `BeX_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)` to `BaX_(2)`<br/><a href="https://interviewquestions.tuteehub.com/tag/except-447107" style="font-weight:bold;" target="_blank" title="Click to know more about EXCEPT">EXCEPT</a>`BeF_2`the solubilityof otherhalidesincreases from ` BeX_2 "to" BaX_2`</p>Answer :D</body></html> | |
| 48595. |
Alkaline earth metals exhibit +2 oxidation state in aqueous solution due to |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/small-1212368" style="font-weight:bold;" target="_blank" title="Click to know more about SMALL">SMALL</a> <a href="https://interviewquestions.tuteehub.com/tag/size-1211196" style="font-weight:bold;" target="_blank" title="Click to know more about SIZE">SIZE</a> of metal atoms <br/>their hydration energies being <a href="https://interviewquestions.tuteehub.com/tag/higher-1022060" style="font-weight:bold;" target="_blank" title="Click to know more about HIGHER">HIGHER</a> than second <a href="https://interviewquestions.tuteehub.com/tag/ionisation-1051250" style="font-weight:bold;" target="_blank" title="Click to know more about IONISATION">IONISATION</a> potential <br/>their hydration energy being less than second ionisation potential <br/>their <a href="https://interviewquestions.tuteehub.com/tag/low-537644" style="font-weight:bold;" target="_blank" title="Click to know more about LOW">LOW</a> second ionisation potential </p>Answer :B</body></html> | |
| 48596. |
Alkalineearthmetalsbelong to the |
| Answer» <html><body><p><<a href="https://interviewquestions.tuteehub.com/tag/p-588962" style="font-weight:bold;" target="_blank" title="Click to know more about P">P</a>>S- <a href="https://interviewquestions.tuteehub.com/tag/blockin-2476265" style="font-weight:bold;" target="_blank" title="Click to know more about BLOCKIN">BLOCKIN</a> <a href="https://interviewquestions.tuteehub.com/tag/periodictable-2219504" style="font-weight:bold;" target="_blank" title="Click to know more about PERIODICTABLE">PERIODICTABLE</a> <br/> p - blockinperiodictable <br/> d- blockin periodictable <br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html> | |
| 48597. |
Alkaline earth metals are |
| Answer» <html><body><p>Monovalent<br/>Divalent<br/>Trivalent<br/>Zerovalent</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |
| 48598. |
Alkaline earth metals always form divalent cations even through their second ionization enthalpies are almost double than their first ionization enthalpies . Explain . |
| Answer» <html><body><p></p>Solution :In the solid state , higher enthalpy of lattice formationby `M^(2+)` ions (as compared to `M^(+)`ions) more than compensates the higher <a href="https://interviewquestions.tuteehub.com/tag/second-1197322" style="font-weight:bold;" target="_blank" title="Click to know more about SECOND">SECOND</a> ionization enthalpies of <a href="https://interviewquestions.tuteehub.com/tag/metals-1094891" style="font-weight:bold;" target="_blank" title="Click to know more about METALS">METALS</a> and in <a href="https://interviewquestions.tuteehub.com/tag/aqueous-2440179" style="font-weight:bold;" target="_blank" title="Click to know more about AQUEOUS">AQUEOUS</a> solution , higher enthalpy of <a href="https://interviewquestions.tuteehub.com/tag/hydration-1033911" style="font-weight:bold;" target="_blank" title="Click to know more about HYDRATION">HYDRATION</a> of `M^(2+)` ions (as compared to `M^(+)` ions) more than compensates the higher second ionization enthalpy</body></html> | |
| 48599. |
_______alkaline earth metal is not readily attacked by acids |
| Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<a href="https://interviewquestions.tuteehub.com/tag/beryllium-895264" style="font-weight:bold;" target="_blank" title="Click to know more about BERYLLIUM">BERYLLIUM</a></body></html> | |
| 48600. |
Alkaline earth metal having least melting point is |
| Answer» <html><body><p>`Be`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/mg-1095425" style="font-weight:bold;" target="_blank" title="Click to know more about MG">MG</a>`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/ca-375" style="font-weight:bold;" target="_blank" title="Click to know more about CA">CA</a>`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/ba-389206" style="font-weight:bold;" target="_blank" title="Click to know more about BA">BA</a>`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |