InterviewSolution
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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.
| 1. |
A and B respectively areA. `H_(2)//Pt,LiAlh_(4)//H_(2)O`B. `H_(2)//Pt,H_(2)//Pt`C. `LiAlH_(4)//H_(2)O,LiAlH_(4)//H_(2)O`D. `LiAlH_(4)//H_(2)O,H_(2)//Pt` |
| Answer» Correct Answer - 4 | |
| 2. |
In the gives reaction sequence `CH_(3)CH_(2)underset(O)underset(||)C CH_(2)CH_(3)overset(Br_(2)//CH_(3)COOH)rightarrow Xoverset(Br_(2)//NaOH)rightarrow Y` X,Y respectively areA. `CH_(3)CH_(2)COCHBrCH_(3)&CH_(3)CH_(2)COCBr_(2)CH_(3)`B. `CH_(3)CH_(2)COCBr_(2)CH_(3)&CH_(3)CH_(2)COCBrCH_(3)`C. `CH_(3)CH_(2)COCBr_(2)CH_(3)&CH_(3)CH_(2)COCBr_(2)CH_(3)`D. `CH_(3)CH_(2)COCHBr_(2)CH_(3)&CH_(3)CH_(2)COCHBr_(2)CH_(3)` |
| Answer» Correct Answer - 1 | |
| 3. |
A+B`overset(dilOH^(-))rightarrow Ph -CH =CH-underset(CH_(3))underset(|)C=O` identfy A&B in the above reactionA. Acetophenone, AcetoneB. Acetophenone, AcetaldehydeC. Acetone ,BenzaldehydeD. Acetaldehyde, Benzoic acid |
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Answer» Correct Answer - 3 Aldol condecsation |
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| 4. |
The possible number of steroisomers of the product of following reaction would be: `Ph-Ch=CH-underset(CH_(3))underset(|)CH-underset(H)underset(|)C=Ounderset(pH=4.5)overset(h_(2)N-OH)rarr+`A. 2B. 6C. 8D. 4 |
| Answer» Correct Answer - C | |
| 5. |
The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN)toG overset(95% H_(2)SO_(4)) underset("Heat")toH`A. `CH_(3)-CH=underset(CH_(3))underset(|)(C)-COOH`B. `CH_(3)-CH=underset(CH_(3))underset(|)(C)-CN`C. `CH_(3)-CH_(2)-overset(OH)overset(|)underset(CH_(3))underset(|)(C)-COOH`D. `CH_(3)-CH=underset(CH_(3))underset(|)(C)-CO-NH_(2)` |
| Answer» Correct Answer - A | |
| 6. |
`Ch_(3)-overset(O)overset(||)C-overset(O)overset(||)C-Phoverset(CH_(3)CO_(3)H)rarr` product, Product will be :A. `CH_(3)-O-overset(O)overset(||)C-overset(O)overset(||)C-Ph`B. `CH_(3)-overset(O)overset(||)C-overset(O)overset(||)C-O-Ph`C. `CH_(3)-overset(O)overset(||)C-O-overset(O)overset(||)C-Ph`D. `Ph-overset(O)overset(||)C-O-overset(O)overset(||)C-CH_(2)OH` |
| Answer» Correct Answer - C | |
| 7. |
`E overset(CF_(3)CO_(3)H)rarr` Product :A. B. C. D. None of these |
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Answer» Correct Answer - A |
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| 8. |
The additon reaction of enol or enolate to the carbonyl function of aldehyde or ketone is known as aldol addition . The `beta`-hydroxyaldehyde or `beta-`hydroxyketone so obtained undergo dehydration in second step to produce a conjugated enone. The first part of reaction is an addition reaction and the second part is an elimination reaction. Carbonyl compound having `alpha`-hydrogen undergoes aldol condensation reaction . `2CH_(3)CH_(2)-overset(O)overset(||)C-Hunderset(Delta)overset(""^(Ө)OH)rarrCH_(3)CH_(2)CH=underset(CH_(3))underset(|)C-overset(O)overset(||)C-H` Find out product of following reaction : X is :A. `CH_(3)-CH=CH-overset(O)overset(||)C-Ph`B. C. `Ph-overset(O)overset(||)C-CH=underset(Ph)underset(|)C-CH_(3)`D. None of these |
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Answer» Correct Answer - C |
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| 9. |
The additon reaction of enol or enolate to the carbonyl function of aldehyde or ketone is known as aldol addition . The `beta`-hydroxyaldehyde or `beta-`hydroxyketone so obtained undergo dehydration in second step to produce a conjugated enone. The first part of reaction is an addition reaction and the second part is an elimination reaction. Carbonyl compound having `alpha`-hydrogen undergoes aldol condensation reaction . `2CH_(3)CH_(2)-overset(O)overset(||)C-Hunderset(Delta)overset(""^(Ө)OH)rarrCH_(3)CH_(2)CH=underset(CH_(3))underset(|)C-overset(O)overset(||)C-H` Find out major product of following reaction : A. B. C. |
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Answer» Correct Answer - B |
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| 10. |
The additon reaction of enol or enolate to the carbonyl function of aldehyde or ketone is known as aldol addition . The `beta`-hydroxyaldehyde or `beta-`hydroxyketone so obtained undergo dehydration in second step to produce a conjugated enone. The first part of reaction is an addition reaction and the second part is an elimination reaction. Carbonyl compound having `alpha`-hydrogen undergoes aldol condensation reaction . `2CH_(3)CH_(2)-overset(O)overset(||)C-Hunderset(Delta)overset(""^(Ө)OH)rarrCH_(3)CH_(2)CH=underset(CH_(3))underset(|)C-overset(O)overset(||)C-H` Which of the following will give aldol condensation ?A. B. `H-overset(O)overset(||)(C)-H`C. D. |
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Answer» Correct Answer - D |
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| 11. |
In the given reaction sequence B is A. B. C. D. |
| Answer» Correct Answer - B | |
| 12. |
In the given reaction sequence B is A. B. C. D. |
| Answer» Correct Answer - B | |
| 13. |
Consider the following sequence of reactions The product (A) and (B) are, respectively :A. B. C. D. |
| Answer» Correct Answer - D | |
| 14. |
Which of the following pairs of reactants is most effective in forming an enamine ?A. `CH_(3)CH_(2).overset(O)overset(||)CH+[(CH_(3))_(2)CH]_(2)NH`B. C. `(CH_(3))_(3)overset(O)overset(||)C CH+(CH_(3))_(2)NH`D. None of these an enamine |
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Answer» Correct Answer - C `2^(@)` amine must be less sterically hindered. |
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| 15. |
Which of the following reactions involve hydride ion transfer ?A. `2H-overset(O)overset(||)C-Hoverset(Ө)overset(OH)rarrH-overset(O)overset(||)C-overset(Ө)O+CH_(3)-OH`B. `2H_(3)-overset(O)overset(||)C-Hoverset(Ө)overset(OH)rarrH_(3)C-CH=CH-overset(O)overset(||)C-H`C. `2H_(3)C-overset(O)overset(||)C-Hoverset(Ө)overset(Al(OEt)_(3))rarrCH_(3)-overset(O)overset(||)C-O-CH_(2)CH_(3)`D. |
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Answer» Correct Answer - A::C::D |
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| 16. |
Assertion : `2, 2-` Dimethylpropanal undergoes Cannizzaro reaction with conc. `NaOH` Reason : Cannizzaro reaction is a disproportionation reactionA. Both the statements are true and statement- II is the correct explanation of statement -I.B. Both statements are true but statement -II is not the correct explanation of statement -I.C. Statement-I is true but statement -II is falsaeD. Statement -I is false but statement- II is true |
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Answer» Correct Answer - 2 Aldehydes not containing alpha hydrogens undergo cannizaro reaction. |
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| 17. |
Mixuture of `Ph-overset(O)overset(||)C-H` and HCHO is treated with NaOH, then Cannizzaro reaction involves :A. reduction of HCHOB. oxidation of HCHOC. reduction of PhCHOD. oxidation of PhCHO |
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Answer» Correct Answer - B::C |
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| 18. |
A compound with molecular mass 180 is acylated with `CH_(3)COCl` to get a compound with molecular mass 390. the number of amino groups present per molecules of the former compounds isA. 2B. 5C. 4D. 6 |
| Answer» Correct Answer - B | |
| 19. |
Assertion (A) Formaldehyde is a planar molecule. Reason (R) It contains `sp^(2)` hybridised carbon atom.A. Assertion and reason both are correct and reason is correct explanation of assertion.B. Assertion and reason both are wrong statements.C. Assertion is correct statement but reason is wrong statement.D. |
| Answer» Correct Answer - i | |
| 20. |
Which of these carbonyl compounds on reduction with Zn-Hg/HCI will give the same product ?A. B. C. D. |
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Answer» Correct Answer - A::B::C |
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| 21. |
The most appropriate reagent for the conversion of 2-pentanone into acetic acid is :A. chromic acidB. dilute `KMnO_(4)`C. alkaline `KMnO_(4), Delta`D. sodium hypochlorite |
| Answer» Correct Answer - C | |
| 22. |
`R-overset(O)overset(||)C-Roverset(?)rarr R-CH_(2)-R` Identify numbers of reagent that can be used for above conversion. (a) `Zn-Hg//HCl" "` (b) `LiAlH_(4)" "` (c) `CHCl_(3)+NaOH` (d) `N_(2)H_(4)//overset(Ө)OH" "`(e) `{:(CH_(2)-CH),(|),(CH_(2)-SH):}`,`H_(2)//Ni" "`(f) `SeO_(2)` |
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Answer» Correct Answer - 3 |
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| 23. |
The carboxyl functional group (-COOH) is present inA. picric acidB. barbituric acidC. ascorbic acidD. aspirin |
| Answer» Correct Answer - D | |
| 24. |
Steatement -I: Acrolein containing aldehyde group undergoes aldol condensation with alkali. Statement -II The duoble bond breaks when treated with `NaOH` . `H_(2)C=CH-CHOoverset(NaOH)to HCHO+CH_(3)CHO`A. Both the statements are true and statement- II is the correct explanation of statement -I.B. Both statements are true but statement -II is not the correct explanation of statement -I.C. Statement-I is true but statement -II is falsaeD. Statement -I is false but statement- II is true |
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Answer» Correct Answer - 4 `H_(2)C=CH-CHOoverset(OH^(-))toHCHO+CH_(3)CHO` |
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| 25. |
Statement :I :Benzaldehyde undergoes aldol condensation. Statement -II: It does not contain any `prop` - hydrogen atom.A. Both the statements are true and statement- II is the correct explanation of statement -I.B. Both statements are true but statement -II is not the correct explanation of statement -I.C. Statement-I is true but statement -II is falsaeD. Statement -I is false but statement- II is true |
| Answer» Correct Answer - 4 | |
| 26. |
Statement :I: `CH_(3)CHO` is more reactive then `CH_(3)COCH_(3)` :Statement II; The C=0 group in `CH_(3)CHO` experiences more steric hidderanceA. Both the statements are true and statement- II is the correct explanation of statement -I.B. Both statements are true but statement -II is not the correct explanation of statement -I.C. Statement-I is true but statement -II is falsaeD. Statement -I is false but statement- II is true |
| Answer» Correct Answer - 3 | |
| 27. |
Statement -:I: Acetaldehyde on reaction with `H_(2)SO_(4)` at room temp forms a solidfuel ` (CH_(3)CHO)_(4) acts as a solid fuelA. Both the statements are true and statement- II is the correct explanation of statement -I.B. Both statements are true but statement -II is not the correct explanation of statement -I.C. Statement-I is true but statement -II is falsaeD. Statement -I is false but statement- II is true |
| Answer» Correct Answer - 4 | |
| 28. |
Acetaldehyde when treated with Conc, `H_(2)SO(4)` at room temp. undergoes trimerisation and formsA. MetaldehydeB. AldolC. ParaldehydeD. Acetaldoxime |
| Answer» Correct Answer - 3 | |
| 29. |
Which of the following cabonyl compounds when treated with dilute acid forms a stable cation?A. `H_(3)C-overset(O)overset(||)C-CH_(3)`B. C. D. |
| Answer» Correct Answer - C | |
| 30. |
Most stable Tautomer of the following compound is : A. B. C. D. |
| Answer» Correct Answer - A | |
| 31. |
After completion of the reactions (I and II ), the organic compound (s) in the reactions mixtures is (are ) A. Reactions I : P and Reactions II: PB. Reaction I: U, acetone and Reaction II: Q acetoneC. Reactions I : T,U acetone and Reactions II : PD. Reaction I : R , acetone and reaction II: S , acetone |
| Answer» Correct Answer - C | |
| 32. |
Two aliphatic aldehydes P and Q react in th presence of aqueous `k_(2)CO_(3)` to give compound R, which upon treatment with HCN provides compound S. On acidification and heatingm,S gives the product shown below: The compound S isB. C. D. |
| Answer» Correct Answer - D | |
| 33. |
Two aliphatic aldehydes (P) and (Q) react in the presence of aqueous `K_(2)CO_(3)` to give compound (R ) which upon treatment with HCN gives compound(S). On acidification and heating, (S) gives the product shown below: Compounds (P) and (Q), respectively, are:B. C. D. |
| Answer» Correct Answer - B | |
| 34. |
Arrange the following compounds in decreasing ordres fo `K_(eq)` for hydrate formation |
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Answer» Correct Answer - c>b>a>d Rate of nucleophilic addition reactions depends on the amount of +ve charge present at carbonyl carbon |
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| 35. |
O- Xylene on oxidation with alkaline `KMnO_(4)` followed by acidification with HCl givesA. benzaldehydeB. benzonitrileC. benzoic acidD. phthalic acid |
| Answer» Correct Answer - 4 | |
| 36. |
Which of the following compound will give butanone on oxidation with alkaline `KMnO_(4)` solution ?A. Butan -l-0lB. Butan-2-0lC. Both of theaeD. None of these |
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Answer» Correct Answer - 2 Oxidation of ` 2^(@)` alcohol |
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| 37. |
The product ("X") of the following sequences of reactions is A. B. C. D. |
| Answer» Correct Answer - D | |
| 38. |
Compound "X" undergoes the following sequences of reactions to form "Y" compound "Y"is -A. B. C. D. |
| Answer» Correct Answer - B | |
| 39. |
Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid ?A. phenolB. Benzoic acidC. ButanalD. Benzaldehyde |
| Answer» Correct Answer - D | |
| 40. |
The product obtained by reaction of PhCHO & MeCHO in basic medium are :A. B. C. D. `Ph-CH=CH-CHO` |
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Answer» Correct Answer - (D) Among `PhCHO to ` Cannizaro reaction.`Ph-CHO & CH_(3)-CHOto Ph -underset(OH)underset(|)CH-CH_(2)-CHO` Among Among `CH_(3)CHO to ` Aldol Addition Product `CH_(3)-overset(OH)overset(|)CH-CH_(2)-CHO` |
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| 41. |
Which of the following gives Fehlings test a) HCHO b) RCHO c)PhCHO d) RCORA. a & bB. b & cC. only bD. All |
| Answer» Correct Answer - 1 | |
| 42. |
Acetone can be converted into pinacol by :A. `Mg//Hg//H_(2)O`B. `Zn//Hg//HCl`C. `Na//Hg//H_(2)SO_(4)`D. all of these |
| Answer» Correct Answer - A | |
| 43. |
The medium in which ethanol is oxidises to ethanl using PCC or PDC isA. any alcoholB. Nitro benzeneC. Methlene dichlordeD. ether |
| Answer» Correct Answer - 3 | |
| 44. |
Which of the products formed when acetone reacts with barium hydroxide solutionA. `CH_(3)-C-overset(O)overset(||)C-CH_(2)-overset(CH_(3))overset(|)underset(OH)underset(|)C -CH_(3)`B. `CH_(3)-overset(O)overset(||)C-underset(CH_(3))underset(|)CH-underset(OH)underset(|)C-CH_(3)`C. `CH_(3)-overset(O)overset(||)C-underset(OH)underset(|)CH-underset(CH_(3))underset(|)CH-CH_(3)`D. `CH_(3)-overset(OH)overset(|)C-underset(CH_(3))underset(|)C-underset(CH_(3))underset(|)C CH_(3)` |
| Answer» Correct Answer - 1 | |
| 45. |
The formation of cyanohydrin from acetone is which type of reaction?A. Electrophilic substitutionB. Electrophilic additionC. Necleophilic additionD. Necleophilic substitution |
| Answer» Correct Answer - 3 | |
| 46. |
Acetone can not be obtained fromA. hydrolysis of isopropylidene chlorideB. hydration of propyneC. dehydrogenation of isopropy alcoholD. hydrolysis of ester |
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Answer» Correct Answer - 4 Esters on hydrolysis produce acid and alcohol but not carbonyl compound. |
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| 47. |
Statement-I: Acetic acid does not undergo haloform reaction. Because Statement-II: Acetic acid has no `alpha` hydrogen.A. STATEMENT-1 is True, Statement -2 is True , Stament -2 is a correct explanation for Statement -I.B. STATEMENT-1 is True, Statement -2 is True , Stament -2 is a correct explanation for Statement -I.C. Statement -1 is True, Statement -2 is False.D. Statement - 1 and Statement -2 both are Fals |
| Answer» Correct Answer - C | |
| 48. |
The product B of the following sequence of reactions is `C_(6)H_(5)CONH_(2) overset(Br_(2))underset(NaOH)toA overst(NaNO_(2)//HCl)underset(ul(" "0-5^(@)C" "))toB`A. B. C. D. |
| Answer» Correct Answer - D | |
| 49. |
Methyl ketone on reaction with `LiCuMe_(2)` gives a major product , whose structure is :A. B. C. D. |
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Answer» Correct Answer - A `underset(("soft nucleophile")" "("soft electrophile alkene"))(Me_(2)CuLi+H_(2)C=CH-overset(O)overset(|)C-CH_(3)` |
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| 50. |
A organic compound A has molecular formula `C_(11)H_(14)O.A` on treatment with `H_(2)N-OH` yields two stereoisomer B and C having moleuclar formula `C_(11)H_(15)NO`. B and C on treatment with concentrated `H_(2)SO_(4)` yield D and E. D and E are respective isomer of B and C. D on alkaline hydrolysis produces optically active amine `F(C_(4)H_(11)N)` . E on alkaline hydrolysis produces aniline as one product. Compounds D and F are :A. Functional isomerB. EnantiomerC. Geometrical isomerD. Metamers |
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Answer» Correct Answer - D |
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