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InterviewSolution
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.
| 52151. |
0.01 mol TNT was completely decomposed as, {:(C_(7)H_(5)N_(3)O_(6)(s), rarr, CO(g),+,H_(2)(g),+, N_(2)(g),+,C(s)),(""TNT,,,,,,,,):} The gases evolved occupied 2.24 L at constantpressure and 273 K in the eudiometer . Select the correct option on the basis of above information. |
| Answer» <html><body><p>Partial pressure of CO is 0.6 atm in the evolved gas<br/>If just sufficient `O_(2)`si introduced in the <a href="https://interviewquestions.tuteehub.com/tag/container-20566" style="font-weight:bold;" target="_blank" title="Click to know more about CONTAINER">CONTAINER</a> to combust CO and `H_(2)`completely, then final volume <a href="https://interviewquestions.tuteehub.com/tag/fo-457881" style="font-weight:bold;" target="_blank" title="Click to know more about FO">FO</a> gases would be 0.68 <a href="https://interviewquestions.tuteehub.com/tag/l-535906" style="font-weight:bold;" target="_blank" title="Click to know more about L">L</a> at 1 atm and <a href="https://interviewquestions.tuteehub.com/tag/273-1832932" style="font-weight:bold;" target="_blank" title="Click to know more about 273">273</a> K<br/>If just sufficient `O_(2)` is introduced in the container to combust CO and `H_(2)`completely, then fianl volumeof gases would be 0.896 L at 1 atm and 273 K<br/>If after combustion the mixture of gases at 273 K is passes through KOH(aq) , contraction of 1.344 L would take place</p>Answer :A::B::D</body></html> | |
| 52152. |
0.01 M solution of an organic acid is found to have a pH of 4.15. Calculate the concentration of the anion, the ionization constant of the acid and its pK_(a). |
| Answer» <html><body><p><br/></p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/ph-1145128" style="font-weight:bold;" target="_blank" title="Click to know more about PH">PH</a> = 4.15 means `- log [<a href="https://interviewquestions.tuteehub.com/tag/h-1014193" style="font-weight:bold;" target="_blank" title="Click to know more about H">H</a>^(+)] = 4.15 or log [H^(+)] = - 4.15 = bar(5) . 85 or [H^(+)] = 7.08 xx <a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(-5)M` <br/> `<a href="https://interviewquestions.tuteehub.com/tag/ha-479237" style="font-weight:bold;" target="_blank" title="Click to know more about HA">HA</a> hArr H^(+) + A^(-)` <br/> <a href="https://interviewquestions.tuteehub.com/tag/hence-484344" style="font-weight:bold;" target="_blank" title="Click to know more about HENCE">HENCE</a>, at equilibrium `[H^(+)]=[A^(-)] = 7.08 xx 10^(-5)M ~= 7.1 xx 10^(-5)M` <br/> `[HA] = (0.01-7.1xx10^(-5))=(0.01-0.000071)M = 0.009929 M` <br/> `K_(a) = ([H^(+)][A^(-)])/([HA])=((7.1xx10^(-5))^(2))/(9.929xx10^(-3))=5.08 xx 10^(-7)` <br/> `pK_(a) = - log K_(a) = - log (5.08 xx 10^(-7))= 6.29`.</body></html> | |
| 52153. |
0.01 M solution is given it's pH is .......... (K_a=6.6xx10^(-4)) |
| Answer» <html><body><p>7.6<br/>8<br/><a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>.6<br/>`5.0`</p>Solution :`alpha=<a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>(K_a/C)=sqrt((6.6xx10^(-<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>))/0.01)` <br/> `=sqrt(6.6xx10^(-2))`=0.257 <br/> `[<a href="https://interviewquestions.tuteehub.com/tag/h-1014193" style="font-weight:bold;" target="_blank" title="Click to know more about H">H</a>^+]=C-alpha` <br/> =0.01 x 0.257 <br/> `=2.57xx10^(-<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)` <br/>`[H^+]=sqrt(K_a.C_o)` <br/> `=sqrt(6.6xx10^(-4)xx10^(-2))` <br/> `[H^+]= 2.57xx10^(-3)` <br/>`therefore` pH=-log `(2.57xx10^(-3))` <br/> =3-log 2.5 <br/> =(3-0.4)=2.60</body></html> | |
| 52154. |
0.01 M NH_3 and (0.01 M of 50 mL NH_3) + (0.01 M, 25 mL H) from these two solution which has pH more ? |
| Answer» <html><body><p></p>Solution :In the <a href="https://interviewquestions.tuteehub.com/tag/mixture-1098735" style="font-weight:bold;" target="_blank" title="Click to know more about MIXTURE">MIXTURE</a> of (HCl + `NH_3`) after neutralization more `NH_3` left without neutralization so <a href="https://interviewquestions.tuteehub.com/tag/ph-1145128" style="font-weight:bold;" target="_blank" title="Click to know more about PH">PH</a> decrease.<br/>Initial pH of only <a href="https://interviewquestions.tuteehub.com/tag/base-892693" style="font-weight:bold;" target="_blank" title="Click to know more about BASE">BASE</a> is more pH of only base `gt`(more base + <a href="https://interviewquestions.tuteehub.com/tag/less-1071906" style="font-weight:bold;" target="_blank" title="Click to know more about LESS">LESS</a> acid) pH</body></html> | |
| 52155. |
0.0093 g of Na_(2)H_(2)EDTA.2H_(2)O is dissolved in 250 mL of aqueous solution. A sample of hard water containing Ca^(2+) and Mg^(2+) ions is titrated with the above EDTA solution using a buffer of NH_(4)OH+NH_(4)Cl using eriochrome balck-T as indicator. 10 mL of the above EDTA solution requires 10 mL of hard water at equivalent point. another sample of hard water is titrated with 10 mL of above EDTA solution using KOH solution (pH=12). using murexide indicator, it requires 40 mL of hard water at equivalence point. a. Calculate the ammount of Ca^(2+) and Mg^(2+) present in 1L of hard water. b. Calculate the hardness due to Ca^(2+), mG^(2+) ions and the total hardness of water in p p m of CaCO_(3). (Given MW(EDTA sal t)=372 g mol^(-1),MW(CaCO_(3))=100 gmol^(-1)) |
| Answer» <html><body><p></p>Solution :Case I: Using erichrome black-`T` indicator <br/> `M` of `EDTA` solution `=(0.093xx1000)/(372xx250)=0.001 M` <br/> Volume of `EDTA` used `=<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a> mL` <br/> Volume of water sample=`40 mL` <br/> `M_(<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>)V_(1)(EDTA)=M_(2)V_(2)(Ca^(2+)` and `Mg^(2+)` in hard water) <br/> `0.001xx10=M_(2)xx10` <br/> `M_(2)=0.001` <br/> `:.` Molarities of `(Ca^(2+)+Mg^(2+))`ions `=0.001 M` <br/> `=0.1` mmoles `L^(-1)` <br/> Case II: Using murexide indicator <br/> `M_(1)V_(1)(EDTA)=M_(2)V_(2)` (Hard water) <br/> `0.001xx10=M_(2)xx40` <br/> `M_(2)=0.25xx10^(-3)=0.<a href="https://interviewquestions.tuteehub.com/tag/25-296426" style="font-weight:bold;" target="_blank" title="Click to know more about 25">25</a> mmol L^(-1)` <br/> `:.` Total `mmol L^(-1)`of `Ca^(2+)` and `Mg^(2+)=1.0` <br/> `mmolL^(-1)` of `Ca^(2+)` and `Mg^(2+)=1.0` <br/> `mmol L^(-1)` of `Mg^(2+)=1.0-0.75 mmol L^(-1)` <br/> mmoles `L^(-1)` of `Ca^(2+)=0.25 mmol L^(-1)` <br/> `:.` Amount of `Ca^(2+) L^(-1)implies0.25xx40xx10^(-3)` <br/> `=0.01gL^(-1)` <br/> Amount of `Mg^(2+) L^(-1)implies0.75xx24xx10^(-3)=0.018 gL^(-1)` <br/> (b) `[<a href="https://interviewquestions.tuteehub.com/tag/mw-550075" style="font-weight:bold;" target="_blank" title="Click to know more about MW">MW</a> (CaCO_(3))=100 g mol^(-1)]` <br/> Total `mmol of Ca^(2+)` and `Mg^(2+)` ions `L^(-1)` <br/> `=1.0=0.001 molL^(-1)` <br/> `=0.001 M` <br/> `0.1 mol of Ca^(2+)` and `Mg^(2+)-=0.1 mol CaCO_(3) L^(-1)` <br/> `-=(0.001xx100xx10^(6))/(10^(3))` <br/> `-=100 p p m` <br/> `:.` total hardness due to `Ca^(2+)` and `Mg^(2+)` ions <br/> of the sample in grams of `CaCO_(3)` in `10^(6) mL of H_(2)O` <br/> `=("Total MxMW"+N19(CaCO_(3))xx10^(6))/(10^(3))` <br/> Hardness due to `Ca^(2+)` ions of the sample in gram of `CaCO_(3)` in `10^(6) mL H_(2)O=(0.25xx10^(-3)xx100xx10^(6))/(10^(3))=25 p p m` <br/> Hardness due to `Mg^(2+)` ions of the sample in grams of `CaCO_(3)` in `10^(6)mL of H_(2)O=100-25 =75 p p m`</body></html> | |
| 52156. |
0.004 gof NaOHis present in 1Lof a solution. The pH of the solution is |
| Answer» <html><body><p>`14.0` <br/>` 12.0` <br/>` 10.0` <br/>` 8.0 ` </p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>= (0.004) /(<a href="https://interviewquestions.tuteehub.com/tag/40-314386" style="font-weight:bold;" target="_blank" title="Click to know more about 40">40</a> ) = 10 ^(-4),<a href="https://interviewquestions.tuteehub.com/tag/v-722631" style="font-weight:bold;" target="_blank" title="Click to know more about V">V</a> =1L ` <br/> ` therefore [<a href="https://interviewquestions.tuteehub.com/tag/oh-585115" style="font-weight:bold;" target="_blank" title="Click to know more about OH">OH</a>^(-) ] =(10 ^(-4))/( 1) = 10 ^(-4)`<br/>` thereforePOH = 4 rArr pH = 14- 4 = 10 `</body></html> | |
| 52157. |
0.0026 M I_(2) solution having unknown volume is reacted with excess of ferrous thiocynate solution to form Fe_(2)O_(3),SO_(4)^(2-),CN^(-) along with I^(-) . If all the sulphate ions formed are precipitated using BaCl_(2) such that 16776 gm of BaSO_(4) is obtained, calculate volume of I_(2) consumed in litre. (At. mass : Ba=137) |
| 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/9-340408" style="font-weight:bold;" target="_blank" title="Click to know more about 9">9</a></body></html> | |
| 52158. |
0.002 M potassium thiocyanate added to 1 mL 0.2 M Fe (III) nitrate than what happen ? |
| Answer» <html><body><p></p>Solution :The iron (III) Nitrate `Fe^(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>+)` is react with potassium thiocyanate `SCN^-` and <a href="https://interviewquestions.tuteehub.com/tag/form-996208" style="font-weight:bold;" target="_blank" title="Click to know more about FORM">FORM</a> `[Fe(SCN)]_((aq))^(2+)` and <a href="https://interviewquestions.tuteehub.com/tag/following-463335" style="font-weight:bold;" target="_blank" title="Click to know more about FOLLOWING">FOLLOWING</a> equilibrium is established. The solution is red because the ferric thiocyanate <a href="https://interviewquestions.tuteehub.com/tag/ion-1051153" style="font-weight:bold;" target="_blank" title="Click to know more about ION">ION</a> is red.<br/>`Fe_((aq))^(3+) + SCN_((aq))^(-) hArr <a href="https://interviewquestions.tuteehub.com/tag/underset-3243992" style="font-weight:bold;" target="_blank" title="Click to know more about UNDERSET">UNDERSET</a>"dark red"(`[Fe(SCN)]_((aq))^(2+))`</body></html> | |
| 52159. |
0.00025 has how many significant figures? |
| Answer» <html><body><p>5<br/>3<br/>`-<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>`<br/>2</p>Answer :D</body></html> | |
| 52160. |
0.00050 mole of NaHCO_(3) is added to a large volume of a solution buffer at pH = 8.00. How much material will exist in each of the three forms, H_(2)CO_(3), HCO_(3)^(-) and CO_(3)^(2-) ? K_(1) and K_(2) for H_(2)CO_(3) are 4.5xx10^(-7) and 4.5xx10^(-11) respectively. |
| Answer» <html><body><p><br/></p>Answer :`n_(H_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)CO_(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>))= 1.069xx10^(-<a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a>), n_(HCO_(3)^(-))= <a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>.86xx10^(-4)`, <br/> `n_(CO_(3)^(2-))= 2.28xx10^(-6)`;</body></html> | |
| 52161. |
, X is : |
| Answer» <html><body><p><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_054_O01.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_054_O02.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_054_O03.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_054_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://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_054_S01.png" width="80%"/></body></html> | |
| 52162. |
........ was used as solvent for dry cleaning of clothes. |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/tetrachloroethane-665650" style="font-weight:bold;" target="_blank" title="Click to know more about TETRACHLOROETHANE">TETRACHLOROETHANE</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/dichloro-439044" style="font-weight:bold;" target="_blank" title="Click to know more about DICHLORO">DICHLORO</a> ethene<br/>Both (A) and (<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>) <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>Solution :Tetrachloroethane</body></html> | |
| 52163. |
............ used in refrigerator is hazardous to ozone layer. |
| Answer» <html><body><p>CFC<br/>CMC<br/>CNC<br/>FCC</p>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> | |
| 52164. |
-underset(|)overset(|)CHgroupin alkanesis called_____. Group . |
| Answer» <html><body><p>carbene<br/>methylene<br/>isomethine<br/>methine</p>Answer :D</body></html> | |
| 52165. |
………. undergoes oxidation in the following reaction. Zn_((s)) + 2NaOH_((aq)) to Na_2ZnO_(2(aq)) + H_(2(g)) |
| Answer» <html><body><p>Zn<br/>`<a href="https://interviewquestions.tuteehub.com/tag/na-572417" style="font-weight:bold;" target="_blank" title="Click to know more about NA">NA</a>^+`<br/>`OH^-`<br/>`H_2`</p>Solution :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> number of Zn <a href="https://interviewquestions.tuteehub.com/tag/changes-913881" style="font-weight:bold;" target="_blank" title="Click to know more about CHANGES">CHANGES</a> from <a href="https://interviewquestions.tuteehub.com/tag/0-251616" style="font-weight:bold;" target="_blank" title="Click to know more about 0">0</a> to +2</body></html> | |
| 52166. |
, the product can be : |
| Answer» <html><body><p><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_046_O01.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_046_O02.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_046_O03.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_046_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> :It is <a href="https://interviewquestions.tuteehub.com/tag/birch-898335" style="font-weight:bold;" target="_blank" title="Click to know more about BIRCH">BIRCH</a> <a href="https://interviewquestions.tuteehub.com/tag/reduction-621019" style="font-weight:bold;" target="_blank" title="Click to know more about REDUCTION">REDUCTION</a>.</body></html> | |
| 52167. |
, the product can be : |
| Answer» <html><body><p><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E01_025_O01.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E01_025_O02.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E01_025_O03.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E01_025_O04.png" width="30%"/></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> | |
| 52168. |
. The product A will be- |
| Answer» <html><body><p><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_GOC_II_E03_004_O01.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_GOC_II_E03_004_O02.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_GOC_II_E03_004_O03.png" width="30%"/><br/><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_GOC_II_E03_004_O04.png" width="30%"/></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> | |
| 52169. |
. The molecular weight difference between X and Y is |
| 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> :<a href="https://interviewquestions.tuteehub.com/tag/benzene-895203" style="font-weight:bold;" target="_blank" title="Click to know more about BENZENE">BENZENE</a> <a href="https://interviewquestions.tuteehub.com/tag/properties-11511" style="font-weight:bold;" target="_blank" title="Click to know more about PROPERTIES">PROPERTIES</a></body></html> | |
| 52170. |
. The possible product (s) of the above reaction |
| Answer» <html><body><p><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E01_169_O01.png" width="30%"/> <br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E01_169_O02.png" width="30%"/> <br/><img src="https://doubtnut-static.s.llnwi.net/static/physics_images/AKS_ELT_AO_CHE_XI_V01_D_C04_E01_169_O03.png" width="30%"/> <br/>both (<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</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>)</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_E01_169_S01.png" width="80%"/></body></html> | |
| 52171. |
…….. statement is true for Al_2O_3 and Al(OH)_3 |
| Answer» <html><body><p>Both are <a href="https://interviewquestions.tuteehub.com/tag/acidic-847601" style="font-weight:bold;" target="_blank" title="Click to know more about ACIDIC">ACIDIC</a>.<br/> Both are basic.<br/>Both are amphoteric.<br/>`Al_2O_3` is acidic while `Al(OH)_3` is basic.</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> | |
| 52172. |
---------- solids do not possess sharp melting points and can be considered as ------ liquids. |
| 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/amorphous-363140" style="font-weight:bold;" target="_blank" title="Click to know more about AMORPHOUS">AMORPHOUS</a> , <a href="https://interviewquestions.tuteehub.com/tag/supercooled-7738019" style="font-weight:bold;" target="_blank" title="Click to know more about SUPERCOOLED">SUPERCOOLED</a></body></html> | |
| 52173. |
+Rpower is not possessed by given groups |
| Answer» <html><body><p>`-O^(-)` <br/>`-NH_2`<br/>`-<a href="https://interviewquestions.tuteehub.com/tag/oh-585115" style="font-weight:bold;" target="_blank" title="Click to know more about OH">OH</a>`<br/>`-<a href="https://interviewquestions.tuteehub.com/tag/cooh-409857" style="font-weight:bold;" target="_blank" title="Click to know more about COOH">COOH</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> :D</body></html> | |
| 52174. |
. Q. Which combination is correct for Ni. |
| Answer» <html><body><p>(<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a>) (i) (R)<br/>(II) (ii) (<a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a>)<br/>(II) (iii) (S)<br/>(II) (<a href="https://interviewquestions.tuteehub.com/tag/iv-501699" style="font-weight:bold;" target="_blank" title="Click to know more about IV">IV</a>) (P)</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> | |
| 52175. |
. Q. Which combination is correct: |
| 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>>(I) (i) (P)<br/>(II) (ii) (<a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a>)<br/>(III) (iii) (S)<br/>(IV) (iv) (<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</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> | |
| 52176. |
. Q. Which combination is/are not correct |
| Answer» <html><body><p>(I) (ii) (<a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a>)<br/>(<a href="https://interviewquestions.tuteehub.com/tag/iii-497983" style="font-weight:bold;" target="_blank" title="Click to know more about III">III</a>) (i) (R)<br/>(I) (iii) (S)<br/>(<a href="https://interviewquestions.tuteehub.com/tag/iv-501699" style="font-weight:bold;" target="_blank" title="Click to know more about IV">IV</a>) (iv) (P)</p>Answer :B</body></html> | |
| 52177. |
. Product P, Q ,and R are : |
| Answer» <html><body><p>`P implies I, Q and R implies II`<br/>`P and Q` both I and II, `R implies II`<br/>P is both I and II, Q and `RimpliesII`<br/>P, Q and R `implies ` all II</p>Solution :Unsymmetrical alkyne gives two <a href="https://interviewquestions.tuteehub.com/tag/products-18828" style="font-weight:bold;" target="_blank" title="Click to know more about PRODUCTS">PRODUCTS</a> with catalytic dehydration and with HBO reaction, where as with `Sia_2BH + H_2O_2+O^(-) H`, it gives only one product. more <a href="https://interviewquestions.tuteehub.com/tag/bulky-2009414" style="font-weight:bold;" target="_blank" title="Click to know more about BULKY">BULKY</a> `Sia_2BH` attacks on the less hindered triple bond to give only one product.</body></html> | |
| 52178. |
, Product B and C are respectively : |
| Answer» <html><body><p><img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_060_O01.png" width="30%"/><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>)-CH_(2)-<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(||)(C)-H` and `CH_(3)-underset(O)underset(||)(C)-H`<br/>`H-underset(O)underset(||)(C)-H` and `CH_(3)-CH_(2)-underset(O)underset(||)(C)-CH_(3)`<br/> `CH_(3)-underset(O)underset(||)(C)-CH_(3)` and `H-underset(O)underset(||)(C)-H`</p>Solution :<img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_CHM_ROHR_E03_060_S01.png" width="80%"/></body></html> | |
| 52179. |
........ present in polluted water are also the food per bacteria. |
| Answer» <html><body><p>Organic <a href="https://interviewquestions.tuteehub.com/tag/compounds-927010" style="font-weight:bold;" target="_blank" title="Click to know more about COMPOUNDS">COMPOUNDS</a><br/>Inorganic compounds <br/><a href="https://interviewquestions.tuteehub.com/tag/soluble-3046305" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUBLE">SOLUBLE</a> salts<br/>Metals </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> :Inorganic compounds</body></html> | |
| 52180. |
_____playsan importantroleinWurtz synthesis . |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/li-1072885" style="font-weight:bold;" target="_blank" title="Click to know more about LI">LI</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/na-572417" style="font-weight:bold;" target="_blank" title="Click to know more about NA">NA</a><br/> <a href="https://interviewquestions.tuteehub.com/tag/k-527196" style="font-weight:bold;" target="_blank" title="Click to know more about K">K</a> <br/>Cs</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> | |
| 52181. |
................. plantation can metabolise nitrogen oxide and control photochemical smog. |
| 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/pinus-1154839" style="font-weight:bold;" target="_blank" title="Click to know more about PINUS">PINUS</a> <a href="https://interviewquestions.tuteehub.com/tag/tree-1426972" style="font-weight:bold;" target="_blank" title="Click to know more about TREE">TREE</a></body></html> | |
| 52182. |
______ on reductive ozonolysis gives ethanal, methanal and carbon dioxide. |
| 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> :1,2-Butadiene (`CH_3CH=C=CH_2`)</body></html> | |
| 52183. |
% of H inH_(2)O is ......... |
| Answer» <html><body><p>11.11<br/>88.89<br/>2<br/>20</p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/molecular-562994" style="font-weight:bold;" target="_blank" title="Click to know more about MOLECULAR">MOLECULAR</a> <a href="https://interviewquestions.tuteehub.com/tag/mass-1088425" style="font-weight:bold;" target="_blank" title="Click to know more about MASS">MASS</a> of `H_(2)O = <a href="https://interviewquestions.tuteehub.com/tag/18-278913" style="font-weight:bold;" target="_blank" title="Click to know more about 18">18</a> gm//"mole"^(-1)`</body></html> | |
| 52184. |
% of H in CH_(3)COOH= .......... |
| Answer» <html><body><p>40<br/>6.66<br/>10<br/>15</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> | |
| 52185. |
....... obtained on passing of dry ammonia over sodium metal at high temperature. |
| Answer» <html><body><p>`Na_(2)NH_(2)` <br/>`NaNH_(2)` <br/>`NaNH_(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)` <br/>`Na_(2)NH_(3)` </p>Solution :`2Na+2NH_(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>(573-673K)to 2NaNH_(2)+H_(2)`</body></html> | |
| 52186. |
........ monument (wonder of world) is getting demage due to acid rain. |
| 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/tajmahal-662822" style="font-weight:bold;" target="_blank" title="Click to know more about TAJMAHAL">TAJMAHAL</a></body></html> | |
| 52187. |
"_____________" modified Linde process such that the cooling becomes more efficient. |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/claude-420579" style="font-weight:bold;" target="_blank" title="Click to know more about CLAUDE">CLAUDE</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/joule-526299" style="font-weight:bold;" target="_blank" title="Click to know more about JOULE">JOULE</a> <br/>Thomson<br/>Planck</p>Answer :A</body></html> | |
| 52188. |
........... method is used to prepare sodium carbonate. |
| 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/solvay-2276029" style="font-weight:bold;" target="_blank" title="Click to know more about SOLVAY">SOLVAY</a> <a href="https://interviewquestions.tuteehub.com/tag/process-11618" style="font-weight:bold;" target="_blank" title="Click to know more about PROCESS">PROCESS</a></body></html> | |
| 52189. |
.... metals having very high hydration fraction. |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/li-1072885" style="font-weight:bold;" target="_blank" title="Click to know more about LI">LI</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/na-572417" style="font-weight:bold;" target="_blank" title="Click to know more about NA">NA</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/k-527196" style="font-weight:bold;" target="_blank" title="Click to know more about K">K</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/rb-613080" style="font-weight:bold;" target="_blank" title="Click to know more about RB">RB</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</body></html> | |
| 52190. |
……. method is used to obtain H_2O_2 from 2 ethylanthraquinol ? |
| 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/oxidation-588780" style="font-weight:bold;" target="_blank" title="Click to know more about OXIDATION">OXIDATION</a></body></html> | |
| 52191. |
....... metals are used to form windows of X-ray tubes. |
| 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> <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> <br/><a href="https://interviewquestions.tuteehub.com/tag/cu-428205" style="font-weight:bold;" target="_blank" title="Click to know more about CU">CU</a> <br/>Be </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> :D</body></html> | |
| 52192. |
...... metal is used to form Grignard reagent. |
| 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> <br/><a href="https://interviewquestions.tuteehub.com/tag/li-1072885" style="font-weight:bold;" target="_blank" title="Click to know more about LI">LI</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/cu-428205" style="font-weight:bold;" target="_blank" title="Click to know more about CU">CU</a> <br/>Be </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> | |
| 52193. |
________ metal act as co-factor in phosphate transfer of ATP by enzymes. |
| 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/magnesium-1082716" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNESIUM">MAGNESIUM</a></body></html> | |
| 52194. |
Mention the uses of deuterium. |
| 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/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>) Deuterium is <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> as a tracer element.<br/>(<a href="https://interviewquestions.tuteehub.com/tag/ii-1036832" style="font-weight:bold;" target="_blank" title="Click to know more about II">II</a>) Deuterium is used to study the movement of ground water by isotopic <a href="https://interviewquestions.tuteehub.com/tag/effect-966056" style="font-weight:bold;" target="_blank" title="Click to know more about EFFECT">EFFECT</a>.</body></html> | |
| 52195. |
(+)- mandelic acid has a specific rotation of 158^(@) What would be the observed specific rotation of a mixture of 25% (-)mandelic acid and 75% (+)- mandlic acid? |
| Answer» <html><body><p>`+118.5^(@)`<br/>`-118.5^(@)`<br/>`-<a href="https://interviewquestions.tuteehub.com/tag/79-335953" style="font-weight:bold;" target="_blank" title="Click to know more about 79">79</a>^(@)`<br/>`+79^(@)`</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/racemic-2969368" style="font-weight:bold;" target="_blank" title="Click to know more about RACEMIC">RACEMIC</a> = <a href="https://interviewquestions.tuteehub.com/tag/50-322056" style="font-weight:bold;" target="_blank" title="Click to know more about 50">50</a>%, `(+)to 50%`</body></html> | |
| 52196. |
{: ( "List -I ", "List - II"),( "(A)Additional reaction", "1. Nitration") , ("(B)Elimination reaction" , "2. Hydration"),("(C)Nucleophilic substitution" ,"3.Dehydration"),("(C)Electrophilic substitution" ,"4.Hydrolysis of alkyl halides") :} |
| Answer» <html><body><p>1,2,3,4<br/>4,3,2,1<br/>2,3,4,1<br/>3,4,2,1</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> | |
| 52197. |
…………… law is used to explain gas-solution equilibrium processes. |
| 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> :Henry.s <a href="https://interviewquestions.tuteehub.com/tag/law-184" style="font-weight:bold;" target="_blank" title="Click to know more about LAW">LAW</a></body></html> | |
| 52198. |
(+-) Lactic acid is optically inactive due to |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/internal-517481" style="font-weight:bold;" target="_blank" title="Click to know more about INTERNAL">INTERNAL</a> <a href="https://interviewquestions.tuteehub.com/tag/compensation-925503" style="font-weight:bold;" target="_blank" title="Click to know more about COMPENSATION">COMPENSATION</a><br/><a href="https://interviewquestions.tuteehub.com/tag/external-981194" style="font-weight:bold;" target="_blank" title="Click to know more about EXTERNAL">EXTERNAL</a> compensation<br/>Presence of <a href="https://interviewquestions.tuteehub.com/tag/plane-1155510" style="font-weight:bold;" target="_blank" title="Click to know more about PLANE">PLANE</a> of symmetry<br/>Absence of <a href="https://interviewquestions.tuteehub.com/tag/asymmetric-886334" style="font-weight:bold;" target="_blank" title="Click to know more about ASYMMETRIC">ASYMMETRIC</a> carbon</p>Solution :External compensation</body></html> | |
| 52199. |
Soda lime test is used to detect one of the following element of organic compound |
| Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/phosphors-1153298" style="font-weight:bold;" target="_blank" title="Click to know more about PHOSPHORS">PHOSPHORS</a> <br/>chlorine<br/>nitrogen<br/>Oxygen</p>Answer :D</body></html> | |
| 52200. |
________ isusefulin purificationof bauxite . |
| Answer» <html><body><p>Sodiumcarbonate <br/><a href="https://interviewquestions.tuteehub.com/tag/sodium-1215510" style="font-weight:bold;" target="_blank" title="Click to know more about SODIUM">SODIUM</a> <a href="https://interviewquestions.tuteehub.com/tag/hydroxide-493242" style="font-weight:bold;" target="_blank" title="Click to know more about HYDROXIDE">HYDROXIDE</a> <br/><a href="https://interviewquestions.tuteehub.com/tag/sodiumchloride-3044044" style="font-weight:bold;" target="_blank" title="Click to know more about SODIUMCHLORIDE">SODIUMCHLORIDE</a> <br/> Soidumhydrogencarbonate </p>Answer :B</body></html> | |