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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
Select the least acidic compound.A. `NO_(2)-CH_(2)-overset(O)overset(||)(C)-O-H`B. `F-CH_(2)-overset(O)overset(||)(C)-O-H`C. `Ph-CH_(2)-overset(O)overset(||)(C)-O-H`D. `CH_(3)-CH_(2)-overset(O)overset(||)(C)-O-H` |
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Answer» Correct Answer - D Least acidic: Electron releasing group decreases the acidic strenth in carboxylic acid. They decreases `delta(+)` charge on carbon. |
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| 602. |
Correct order of stability of these carbocatios is:A. IgtIIgtIIIB. IgtIIIgtIIC. IIgtIgtIIID. IIgtIIIgtI |
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Answer» Correct Answer - D Positive charge in I & III are less stable then II as it is on double bonded carbon. Donating effect of alkyl group is making III more stable then I. |
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| 603. |
Among the following compounds which can be dehydrated very easily is:A. `{:(" "CH_(3)),(" |"),(CH_(3)-CH_(2)-C-CH_(2)-CH_(3)),(" |"),(" "OH):}`B. `{:(" "OH),(" |"),(CH_(3)-CH_(2)-CH_(2)-CH-CH_(3)):}`C. `CH_(3)-CH_(2)-CH_(2)-CH_(2)-CH_(2)-OH`D. `{:(CH_(3)-CH_(2)-CH-CH_(2)-CH_(2)-OH),(" |"),(" "CH_(3)):}` |
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Answer» Correct Answer - A `{:(" "CH_(3)" "CH_(3)),(" |"" |"),(CH_(3)-CH_(2)-C-CH_(2)-CH_(3) overset(H^(+))rarrCH_(3)-CH_(2)-underset(o+)(C)-CH_(2)-CH_(3)),( " |"),(" "OH):}` The more stable carbocation is generated thus more easily it will be dehydrated. |
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| 604. |
IUPAC name of ethers isA. Alkoxy alkaneB. alkanolC. alkanalD. alkyl alkanoate |
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Answer» Correct Answer - A |
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| 605. |
Which of the following gives most stable carbocation by dehydrationA. `(CH_(3))_(2)CH-OH`B. `(CH_(3))_(3)C-OH`C. `CH_(3)-CH_(2)-OH`D. `CH_(3)-CH_(2)-O-CH_(2)-CH_(3)` |
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Answer» Correct Answer - B `3^(@)` alcohols, `Me-underset(o+)overset(Me)overset(|)(C)-Me` is most stable carbocation |
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| 606. |
The correct IUPAC name of compounds A. Cis-1,2 dimethyl cyclobutane and trans-1,3 dimethyl cyclo butaneB. 2-Butene and methylpropeneC. Trans-2-butene and cis-2-buteneD. Methylpropene and methylpropene |
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Answer» Correct Answer - A |
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| 607. |
The IUPAC names of the following pair of compound A. 6-Bromo-5-chlorocyclohexen-3-yneB. 5-Bromo-6-chloro-1-cyclohexen-3-yneC. 6-Bromo-5-chloro-3-cyclohexen-1-yneD. 4-Bromo-3-chloro-1-cyclohexan-5-yne |
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Answer» Correct Answer - B |
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| 608. |
The alkene formed as a major product in the above elimination reaction isA. B. `CH_(2)=CH_(2)`C. D. |
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Answer» Correct Answer - B This is Hofmann elimination reaction in which ethyl group will be involved in alkene formation because it has 3 hydrogen and reaction proceeds through more stable carbanion intermediate. So ethylene is obtained as major product. |
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| 609. |
IUPAC name of the following compound will be `{:(CH_(3)-CH=C-CH_(2)-CH_(3)),(" |"),(" "CH_(2)-CH_(2)-CH_(3)):}`A. 3-ethyl-2-hexeneB. 3-propyl-2-hexeneC. 3-propyl-3-hexeneD. 4-ethyl-4-hexene |
| Answer» Correct Answer - A | |
| 610. |
The IUPAC name of `CH_(3)CH(CH_(3))COOH` isA. Dimethyl acetic acidB. 2-methyl propanoic acidC. Propanoic acidD. Butyric acid |
| Answer» Correct Answer - B | |
| 611. |
IUPAC name of `{:(" "OH),(" |"),(CH_(3)-C-CH_(2)-CH-CH_(3)),(" |"" | "),(" "CH_(3)" "CH_(3)):}` isA. 2, 4-dimethyl pentanol-2B. 2, 4-dimethyl pentanol-4C. 2, 2-dimethyl butanol-2D. None of these |
| Answer» Correct Answer - A | |
| 612. |
IUPAC name of the following compound is `{:(" "H),(" |"),(CH_(3)-C-CH_(2)-CH_(3)),(" |"),(" "C_(6)H_(5)):}`A. 2-cyclohexybutaneB. 2-phenylbutaneC. 3-cyclohexylbutaneD. 3-phenylbutane |
| Answer» Correct Answer - B | |
| 613. |
The IUPAC name of the compound having structure `{:(C_(2)H_(5)-C-CH-CH_(3)),(" ||"" |"),(" "CH_(2)CH_(3)):}` isA. 3-methyl-2-ethyl but 1-eneB. 2-ethyl-3-methyl but 1-eneC. 3-ethyl-3-methyl but 1-eneD. Ethyl isopropyl ethane |
| Answer» Correct Answer - B | |
| 614. |
The `IUPAC` name of the following compound `Cl_(3)C-CH_(2)CHO` isA. 3,3,3-trichloropropanalB. 1,1,1-trichloropropanalC. 2,2,2-trichloropropanalD. Chloral |
| Answer» Correct Answer - A | |
| 615. |
Correct structural formula of compound 5-nitro-3-methoxy-3-methylhexanolchloride isA. `{:(" "NO_(2)" "OCH_(3)" "O),(" |"" |"" ||"),(CH_(3)-CH-CH_(2)-C-CH_(2)-C-Cl),(" |"),(" "CH_(3)):}`B. `{:(" "NO_(2)" "Cl" "CH_(3)),(" |"" |"" |"),(CH_(3)-CH-CH-C-CH_(2)-CHO),(" |"),(" "OCH_(3)),():}`C. `{:(" "CH_(3)),(" |"),(CH_(3)-CH_(2)-CH-CH_(2)-CH),(" |"" |"),(" "Cl" "OCH_(3)):}`D. `{:(CH_(3)-CH_(2)-CH-C-CH-CH_(3)),(" |"" ||"" |"),(" "Cl" "O" "OCH_(3)):}` |
| Answer» Correct Answer - A | |
| 616. |
IUPAC name of `(CH_(3))_(3)C Cl`A. 3-chlorobutaneB. 2-chloro-2-methylpropaneC. t-butyl chlorideD. n-butyl chloride |
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Answer» Correct Answer - B `{:(" ".^(1)CH_(3)),(" |"),(H_(3)C-.^(2)C-Cl),(" |"),(" ".^(3)CH_(3)):}` IUPAC name : 2-Chloro-2-methylpropane. |
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| 617. |
Which is the IUPAC name of `{:(" "C_(2)H_(5)),(" |"),(CH_(3)-C-CH_(2)Cl),(" |"),(" "C_(2)H_(5)):}`A. 1-chloro-2, 2-diethylpropaneB. 3-chloro-2, 2-diethylpropaneC. 1-chloro-2-ethyl-2-methylethaneD. 1-chloro-2, 2-diethyl-2 methylethane |
| Answer» Correct Answer - C | |
| 618. |
The IUPAC name of `CH_(3)-O-C_(2)H_(5)` is `:`A. EthoxymethaneB. MethoxyethaneC. Methylethyl etherD. Ethylmethyl ether |
| Answer» Correct Answer - B | |
| 619. |
Correct structural formula of compound 5-nitro-3-methoxy-3-methylhexanolchloride isA. `{:(" "NO_(2)" "OCH_(3)" "O),(" |"" |"" ||"),(CH_(3)-CH-CH_(2)-C-CH_(2)-C-Cl),(" |"),(" "CH_(3)):}`B. `{:(" "NO_(2)" "Cl" "CH_(3)),(" |"" |"" |"),(CH_(3)-CH-CH-C-CH_(2)-CHO),(" |"),(" "OCH_(3)),():}`C. `{:(" "CH_(3)),(" |"),(CH_(3)-CH_(2)-CH-CH_(2)-CH),(" |"" |"),(" "Cl" "OCH_(3)):}`D. `{:(CH_(3)-CH_(2)-CH-C-CH-CH_(3)),(" |"" ||"" |"),(" "Cl" "O" "OCH_(3)):}` |
| Answer» Correct Answer - A | |
| 620. |
IUPAC name of the following are `{:(" "CH_(3)),(" |"),(CH_(3)-N-C-CH_(2)-CH_(3)),(" |"" |"),(" "CH_(3)""C_(2)H_(5)):}`A. 3-dimethylamino-3-methyl pentaneB. 3 (N, N-trimethyl)-3-aminopentaneC. 3, (N, N-trimethyl) pentanammineD. 3-N, N-dimethyl amino-3-methyl pentane |
| Answer» Correct Answer - D | |
| 621. |
The name of according to `IUPAC` nomenclature system is `:`A. 2,3 dibromo-1,4-dichlorobutene -2B. 1,4-dichloro-2,3-bromobutene-2C. DichlorobromobuteneD. Dichlorobromobutane |
| Answer» Correct Answer - A | |
| 622. |
The correct IUPAC name of `{:(H_(2)C=CH-CH-CH_(2)C-=CH),(" |"),(" "CH_(3)):}`A. 3-methyl-1-hexen-5-yneB. 4-methyl-5-hexen-1-yneC. 4-(ethenyl)-1-pentyneD. 3-(2-propenyl) butene-1 |
| Answer» Correct Answer - A | |
| 623. |
The IUPAC name of `CH_(3)COOC_(2)H_(5)` will beA. Ethyl acetateB. Ethyl ethanoateC. Methyl propanoateD. None of these |
| Answer» Correct Answer - B | |
| 624. |
The geometry of the methanide ion, `overset(-)overset(..)CH_(3)`,A. trigonal pyramidalB. tetrahedralC. square pyramidalD. trigonal planar |
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Answer» Correct Answer - B Hybridization of negatively charged `C` atom of methanide ion is `sp^(3)` which is correleated to tetrahedral orientation. However, due to the presence of a lone pair, the shape is trigonal pyramidal |
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| 625. |
Which carbon-atoms has tetrahedral geometry `overset(1)(CH_(2))=overset(2)(CH)-overset(3)(CH_(2))-overset(4)(COOH)`A. 1B. 2C. 3D. 4 |
| Answer» Correct Answer - C | |
| 626. |
The IUPAC name of `{:(CH_(2)=CH-CH-CH_(2)-CH_(3)),(" |"),(" "CH_(2)-CH_(2)-CH_(3)):}` isA. 3-propyl pentene-1B. 3-ethyl-pentene-1C. 4-ethyl-hexene-1D. 3-ethyl-hexene-1 |
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Answer» Correct Answer - D `{:(overset(1)CH_(2)=overset(2)(CH)-overset(3)(CH)-CH_(2)-CH_(3)),(" |"),(" "CH_(3)-CH_(2)-CH_(3)):}` The IUPAC name is 3-ethyl hexene-1. |
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| 627. |
The IUPAC name of the following structure is `{:(CH_(3)-C-CH_(2)-COOH),(" ||"),(" "O):}`A. 3-ketobutanoic acidB. 2-ketobutanoic acidC. 4-ketobutanoic acidD. 3-oxopropanoic acid |
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Answer» Correct Answer - A `underset("3-keto butanoic acid")(overset(4)(C)H_(3)-underset(O)underset(||)overset(3)(C)-overset(2)(C)H_(2)-overset(1)(C)OOH)` |
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| 628. |
An oxygen containing organic compound was found to contain 52% carbon and 13% of hydrogen. Its vapour density is 23. The compound reacts with sodium metal to librate hydrogen. A functional isomer of this compound isA. EthanolB. EthanalC. Methoxy methaneD. Methoxy ethane |
| Answer» Correct Answer - C | |
| 629. |
Inductive effect refers to-A. `sigma` electron displacement along a carbon chainB. Complete transfer of one of the shared pair of electrons to one of the atoms joined by a double bondC. complete transfer of electron with the help of conjugationD. none of above |
| Answer» Correct Answer - A | |
| 630. |
Total number of electron present in the valence shell of `C` aton in methyl radical isA. 6B. 7C. 8D. 5 |
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Answer» Correct Answer - B `C` atom of `CH_(3)` radical has one unpaired electron and six electrons from three `C-H` bonds. |
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| 631. |
Base strength of the following (i) `H_(3)C CH_(2)^(-)` , (ii) `H_(2)C=CH^(-)` (iii) `HC-=C^(-)`A. `(iii) gt (ii) gt (i)`B. `(i) gt (iii) gt (ii)`C. `(i) gt (ii) gt (iii)`D. `(ii) gt (i) gt (iii)` |
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Answer» Correct Answer - C To find the base strength of carbanions, we consider the corresponding conjugate acids. The order of their acidic strength is `C-=underset(sp)CHgtCH_(2)=underset(sp^(2))CH_(2)gtCH_(3)-underset(sp^(3))CH_(3)` Thus, the order of base strength is just the reverse of it: `CH_(3)barCH_(2)gt CH_(2)=barCH gt CH-=barC` |
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| 632. |
In the hydrocarbon `underset(6)(C)H_(3)-underset(5)(C)H=underset(4)(C)H-underset(3)(C)H_(2)-underset(2)(C)-= underset(1)(C)H` The state of hybridization of carbons 1,3 and 5 are in the following sequenceA. `sp, sp^(2), sp^(3)`B. `sp^(3), sp^(2), sp`C. `sp^(2), sp, sp^(3)`D. `sp,sp^(3), sp^(2)` |
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Answer» Correct Answer - D `{:(" "5" "3" "1),(CH_(3)-CH=CH-CH_(2)-C-=CH),(" "darr" "darr" "darr),(" "sp^(2)" "sp^(3)" "sp):}` |
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| 633. |
For which of the following molecule significant `mu ne0` ? A. Only (a)B. (a) and (b)C. Only (c)D. (c) and (d) |
| Answer» Correct Answer - D | |
| 634. |
The non aromatic compound among the following is :A. B. C. D. |
| Answer» Correct Answer - D | |
| 635. |
In which of the following pairs of carbarion the first one is more stable than correct.A. `overset(o.)CF_(3),overset(o.)"CC"l_(3)`B. `HC-=overset(" "o.)C,H_(2)C=overset(o.)CH`C. D. `(CH_(3)),overset(o.)C,H_(3)C-overset(o.)CH_(2)` |
| Answer» Correct Answer - B | |
| 636. |
Electron deficient species are known as electrophiles. All positviely changed species are not electronphilic. Covalent compound having complete octer but if central atom has unfilled d-orbital also act as electrophiles. All electrophiles are not always Lewis acid. Which of the following is not electrophileA. `H^(o+)`B. `overset(o+)CH_(3)`C. `BX_(3)`D. `overset(o+)NH_(4)` |
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Answer» Correct Answer - D `overset(o+)NH_(4)` has complete octet. |
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| 637. |
Which is the decreasing order of stability (i) `CH_(3)-overset(+)(CH)-CH_(3)` (ii) `CH_(3)-overset(+)(CH)-O-CH_(3)` (iii) `CH_(3)-overset(+)(CH)-CO-CH_(3)`A. `(i) lt (ii) lt (iii)`B. `(i) gt (ii) gt (iii)`C. `(iii) gt (ii) gt (i)`D. `(ii) gt (iii) gt (i)` |
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Answer» Correct Answer - B `{:(CH_(3)-overset(+)(C)H gt CH_(3)-overset(+)(C)H gt CH_(3)-overset(+)(C)H),(" |"" |"" |"),(" "CH_(3)" "OCH_(3)" "COCH_(3)):}` |
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| 638. |
What will be the IUPAC name of the given compound ? `{:(" "CH_(3)" "CH_(2)-CH_(3)),(" "|" "|),(CH_(3)-CH-CH -CH_(2)-CH-CH_(3)),(" "|),(" "CH_(2)-CH_(3)):}`A. 2, 5-diethyl-4-methylhexaneB. 3, 4,6-trimethyloctaneC. 2, 5,6-trimethyloctaneD. 3, 5-dimethyl-6-ethylheptane |
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Answer» Correct Answer - B `{:(" "CH_(3)" "overset(7)(C)H_(2)-overset(8)(C)H_(3)),(" |"" |"),(CH_(3)-overset(3)(C)H-overset(4)(C)H-overset(5)(C)H_(2)-overset(6)(C)H-CH_(3)),(" |"),(" "underset("3,4,6-Trimethyloctane")(overset(2)(C)H_(2)-overset(1)(CH_(3)))):}` |
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| 639. |
The maximum number of stereoisomers possible for 2-hydroxy-2-methyl butanoic acid isA. 1B. 2C. 3D. 4 |
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Answer» Correct Answer - B `{:(" "CH_(3)),(" |"),(COOH-C^(**)-CH_(2)-CH_(3)),(" |"),(" "OH):}` One chiral centre. Therefore two forms are possible. |
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| 640. |
The IUPAC name of A. 2-ethyl-3-methylbutanonyl chlorideB. 2, 3-dimethylpentanonyl chlorideC. 3, 4-dimethylpentanonyl chlorideD. 1-chloro-1-oxo-2,3-dimethylpentane |
| Answer» Correct Answer - B | |
| 641. |
The IUPAC name of `{:(" "CH_(3)),(" |"),(CH_(3)-CH-CH_(2)-C-CH_(3)),(" |"" |"),(" "OH" "OH):}` and `{:(CH_(2)-CH-CH_(2)),("|"" |"" |"),(CN" "CN" "CN):}`A. 1, 1-dimethyl-1,3-butanediol and propanetricarbyl amineB. 4-methyl-2, 4-pentanediol and 1,2,3 propanetrinitrileC. 2-methyl-2, 4-pentanediol and propane 1, 2, 3-tricarbonitrileD. 1, 3, 3-trimethyl 1, 3-propanediol and 1, 2, 3 tricyanopropane |
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Answer» Correct Answer - C `{:(" "CH_(3),),(" |",),(underset(5)(CH_(3))-underset(4)(CH)-underset(3)(CH_(2))-underset(2)(C)-underset(1)(C)H_(3),," "CH_(2)-CH-CH_(2)),(" |"" |"," |"" |"" |"),(" "OH" "OH," "CN" "CN" "CN),("2-methyl 2,4-pentanediol","Propane-1,2, tricarbonitrile"):}` |
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| 642. |
IUPAC name of `underset(CN)underset(|)(CH_(2))-underset(CN)underset(|)(CH)-underset(CN)underset(|)(CH_(2))`A. 3 - cyanopentane -1, 5-dinitrileB. Propane -1,2,3 - tri nitrileC. 1,2,3 - tri cyano propaneD. Propane - 1,2,3 - tricarbonitri le |
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Answer» Correct Answer - D |
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| 643. |
IUPAC name of `CH_(3)-CH=CH-C-=CH` isA. Pent-2-en-4-yneB. Pent-3-en-1-yneC. Pent-3-yne-1-enD. Pent-2-yne-1-en |
| Answer» Correct Answer - B | |
| 644. |
IUPAC name of `{:(CH_(3)-CH-CH_(2)-CH-CH_(3)),(" |"" |"),(" "CH_(3)" "CN):}`A. 2-cyano-3-methyl hexaneB. 3-methyl-5-cyanohexaneC. 2-4 dimethyl-cyanopentaneD. 2- cyano - 3- methylhexane |
| Answer» Correct Answer - C | |
| 645. |
Ethyl acetoacetate shows, which type of isomerismA. ChainB. OpticalC. MetamerismD. Tautomerism |
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Answer» Correct Answer - D `CH_(3)COOC_(2)H_(5)` shows tautomeric isomerism. `CH_(3)-overset(O)overset(||)(C)-underset("Keto")(O)-CH_(2)-CH_(3)hArr CH_(2)=underset("Enol")(overset(OH)overset(|)(C)-OC_(2)H_(5))` |
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| 646. |
Which of the following reaction equilibrium is favoured in forward direction?A. B. C. D. `EtOH+NaOHhArrEtoverset(ɵ)(O)Noverset(o+)(a)+H_(2)O` |
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Answer» Correct Answer - B::C Acid-base reaction takes place from the siode of strong acid-strong base to weak acid-weak base. |
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| 647. |
The IUPAC name of the compound A. 3, 3- Dimethyl cyclohexane carbaldehydeB. 1, 1-Dimethyl -3- hydroxy cyclohexaneC. 3 , 3-Dimethyl -1- hydroxy cyclohexaneD. 1, 1-Dimethyl -3-cyclohexanol |
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Answer» Correct Answer - A |
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| 648. |
I.U.P.A.C name of methyl cyanide isA. Cyano methaneB. EthanenitrileC. Methane nitrileD. Methyl-n-butyl amine |
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Answer» Correct Answer - B |
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| 649. |
The IUPAC name of the given compound isA. 2-methyl butaneB. 3-methyl butaneC. PentaneD. Isopentane |
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Answer» Correct Answer - A |
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| 650. |
The number of following is an aromatic compoundA. phenolB. NaphthaleneC. pyridineD. All |
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Answer» Correct Answer - D |
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