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. |
An organic compound A (Molecular formula `C_(6)H_(12)O_(4))` on treatment with Na metal liberates `H_(2)` gas and on treatment with `HIO_(4)` gives 2 moles of `CH_(3)CHO,HCOOH(1"mole")and CO_(2)(1"mole")`. Find the structure on A.A. B. C. D. |
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Answer» Correct Answer - D |
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| 2. |
The releative rate or acid catalyssed dehydration of following alcohols would be: (P) `Ph-overset(CH_(3))overset(|)(C)-underset(OH)underset(|)(CH)-CH_(3)` (Q) `Ph-overset(CH_(3))overset(|)(C)-CH_(2)-CH_(2)-OH` (R ) `Ph--underset(OH)underset(|)overset(CH_(3))overset(|)(CH)-CH_(2)CH_(3)` `Ph--underset(CH_(3))underset(|)overset(CH_(3))overset(|)(CH)-CH_(2)OH`A. `R gt P gt S gt Q`B. `R gt S gt P gt Q`C. `P gt R gt S gt Q`D. `R gt S gt Q gt P` |
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Answer» Correct Answer - A |
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| 3. |
-OH group is substituted by -Br. The slowest step is dehydration. Which of the following is correct comparison of rate constant `K_(1) and K_(2)`?A. `k_(1)=k_(2)`B. `k_(1)gtk_(2)`C. `k_(1)ltk_(2)`D. cannot be predict |
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Answer» Correct Answer - C |
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| 4. |
The releative rate or acid catalyssed dehydration of following alcohols would be: (P) `Ph-overset(CH_(3))overset(|)(C)-underset(OH)underset(|)(CH)-CH_(3)` (Q) `Ph-overset(CH_(3))overset(|)(C)-CH_(2)-CH_(2)-OH` (R ) `Ph--underset(OH)underset(|)overset(CH_(3))overset(|)(CH)-CH_(2)CH_(3)` `Ph--underset(CH_(3))underset(|)overset(CH_(3))overset(|)(CH)-CH_(2)OH`A. `R gt P gt S ge Q`B. `R gt S gt P gt Q`C. `P gt R gt S gt Q`D. `R gt S gt Q gt P` |
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Answer» Correct Answer - A |
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| 5. |
An organic compound A (Molecular formula `C_(6)H_(12)O_(4))` on treatment with Na metal liberates `H_(2)` gas and on treatment with `HIO_(4)` gives 2 moles of `CH_(3)CHO,HCOOH(1"mole")and CO_(2)(1"mole")`. Find the structure on A.A. B. C. D. |
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Answer» Correct Answer - D |
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| 6. |
Identify the major product of the following reation: A. B. C. D. No reaction |
| Answer» Correct Answer - B | |
| 7. |
-OH group is substituted by -Br. The slowest step is dehydration. Which of the following is correct comparison of rate constant `K_(1) and K_(2)`?A. `k_(1)=k_(2)`B. `k_(1)gtk_(2)`C. `k_(1)ltk_(2)`D. cannot be predict |
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Answer» Correct Answer - C |
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| 8. |
Consider the following sequence of reactions A. B. C. D. |
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Answer» Correct Answer - B |
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| 9. |
The product A and B respectively:A. B. C. D. |
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Answer» Correct Answer - C |
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| 10. |
Consider the following sequence of reactions A. B. C. D. `(+-)-2` butanol |
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Answer» Correct Answer - A |
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| 11. |
When is treated with proton acid, a resonance stablized cation is produced. Which dience listed below when treated with acid will give the same carbocation?A. B. C. D. |
| Answer» Correct Answer - B | |
| 12. |
The molecule A in the sequence reaction isA. B. C. D. |
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Answer» Correct Answer - D |
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| 13. |
Consider the following sequence of reactions A. B. C. D. |
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Answer» Correct Answer - B |
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| 14. |
, Product of the reaction is:A. B. C. D. |
| Answer» Correct Answer - B | |
| 15. |
In the following sequence of reaction A. B. C. D. |
| Answer» Correct Answer - C | |
| 16. |
A compound `P(C_(7)H_(8)O)` is insouble in water, dilute HCl, `NaHCO_(3)` but dissolve in dilute NaOH. When P is treated with bromine water, it is converted into a compound of formula `C_(7)H_(7)Obr`. Compound P is:A. B. C. D. |
| Answer» Correct Answer - C | |
| 17. |
Compound `A,C_(7)H_(8)O`, is insoluble in water, dilute `HCl`, and aquenous `NaHCO_(3)`, it dissolves in dilute `NaOH`. When `A` is treated with bromine water is is converted rapidly into a compound of formula `C_(7)H_(5)Obr_(3)`. The structure of `A` isA. B. C. D. |
| Answer» Correct Answer - C | |
| 18. |
Which one of the following compounds will be most readily dehydrated?A. 2-butanolB. 1-phenyl-1-propanolC. D. |
| Answer» Correct Answer - B | |
| 19. |
When ethylene glycol is heated with oxalic acid in this presence of conc. `H_(2)SO_(4)`, the product formed is:A. B. C. D. |
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Answer» Correct Answer - A |
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| 20. |
The correct statement(s) about the following reaction sequence is (are) Cumene `(C_(9)H_(12))underset((ii)H_(3)O^(+))overset((i)O_(2))rarrPoverset(CHCl_(3)//NaOH)rarr` Q(major)+R(minor), `Q underset(PhCH_(2)Br)overset(NaOH)rarrS`A. R is steam volatileB. Q gives dark violet colouration with 1% aqeuous `FeCl_(3)` solutionC. S given yellow precipitate with 2,4-dinitrophenylhydrazineD. S gives dark violet colouration with 1% aqueous `FeCl_(3)` solution |
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Answer» Correct Answer - B::C |
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| 21. |
An organic amine (X) was treated with alcoholic potast and another compound (Y), a foul smelling gas ws formed with formula `C_(6)H_(5)NC,(Y)` was formed by reacting a compound (Z) with `Cl_(2)` in the presence of slaked lime. The compound (Z) is:A. `C_(6)H_(5)NH_(2)`B. `C_(2)H_(2)OH`C. `C_(2)H_(2)OH`D. `CHCl_(3)` |
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Answer» Correct Answer - B |
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| 22. |
The products of reaction of alcoholic silver nitrate with ethyl bromide areA. etahneB. etheneC. nitroethaneD. ethyl alcohol |
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Answer» Correct Answer - C |
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| 23. |
The above reaction is known as:A. Clemmensen reductionB. Birch reductionC. MPV reactionD. Wolff-Kishmer reaction |
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Answer» Correct Answer - B |
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| 24. |
Find out the product when compound reacts with `NaBH_(4)`: A. B. C. D. |
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Answer» Correct Answer - B |
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| 25. |
Product B of the above reaction is:A. B. C. D. |
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Answer» Correct Answer - B |
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| 26. |
Find out the product when compound reacts with `NaBH_(4)`: A. B. C. D. |
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Answer» Correct Answer - B |
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| 27. |
When-2-chloroethenol is wanted with dilute NaOH, the major product formed is:A. `Cl-CH_(2)-CH_(2)-O-CH_(2)-CH_(2)-Cl`B. `HO-CH_(2)-CH_(2)-CH_(2)-CH_(2)-OH`C. `HO-CH_(2)-CH_(2)-OH`D. |
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Answer» Correct Answer - D |
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| 28. |
The vapour of an alcohol X are passed over Cy heated at `300^(@)C` whereby an alkene is formed as prduct . The alcohol X is expected to be:A. B. C. D. |
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Answer» Correct Answer - D |
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| 29. |
Ethanol vapour is passed over heated copper and the product is treated with aqueous NaOH. The final product is ..... |
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Answer» Correct Answer - aldol |
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| 30. |
A...... Diol has two hydroxyl groups on ...... Carbon atoms. |
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Answer» Correct Answer - vicinal; same |
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| 31. |
Aliphatic ehters are purified by shaking with a solution of ferrous salt to remove ..... Which are formed on prolonged standing in contact with water. |
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Answer» Correct Answer - Peroxides |
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| 32. |
Major product obtained in this reaction is:A. B. C. D. |
| Answer» Correct Answer - B | |
| 33. |
A `(C_(5)H_(12)O)` produces, on reaction `PCl_(5)` from alkyl chloride B and C. B and C both on reaction with aqueous KOH form alcohol D and E . Both D and E give iodoform test. Identify the correct answers.A. B. C. C is `CH_(3)CH_(2)CH_(2)CI`D. |
| Answer» Correct Answer - A::B::D | |
| 34. |
, Product can beA. B. C. D. |
| Answer» Correct Answer - A::B | |
| 35. |
Which of the following reactions will not result in the formatio of anisole?A. B. C. D. |
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Answer» Correct Answer - D |
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| 36. |
In the following `Me_(2)C=CH-CH_(2)-CH=CH_(2)+C_(6)H_(5)CO_(3)H(1"equiv".) to X , X is `A. B. C. D. |
| Answer» Correct Answer - C | |
| 37. |
The most steam volatile species is:A. B. C. D. |
| Answer» Correct Answer - A | |
| 38. |
The most steam volatile species is:A. B. C. D. |
| Answer» Correct Answer - A | |
| 39. |
In the Libermann nitroso reaction, change in the colour of phenol occur as:A. Brown or red green red deep blueB. Red deep blue greenC. Red brown whiteD. White red green |
| Answer» Correct Answer - B | |
| 40. |
An organic compound A `(C_(9)H_(10)O)` does not evolve any gas on reatement with Na-metal but on hydrolysis with dil. `H_(2)SO_(4)` gives `B(C_(9)H_(12)O_(2))` which on further treatement with alkaline solution of iodine gives an yellow precipitate. Also A on treatment with excess of conc. HBr gives `C(C_(9(H_(11)OBr)` as the major product. C on further treatment with `C_(2)H_(5)ONa//C_(2)H_(5)OH` followed by acidification of product gives D (an isomer of A). D on ozonolysis followed by work-up with dimethyl sulphide gives ortho hydroxyl benzaldehyde as one of the product. Answer the following three questions based on the above information. Which of the following statement regarding B is correct?A. B is an optically inactive substanceB. B is an optically active substance with same configuration as that of AC. B is an optically active substance with opposite configuration to that of A.D. A pure enantiomer of "A" will produce, on hydrolysis reaction, a racemic mixture of B |
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Answer» Correct Answer - c |
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| 41. |
An organic compound A `(C_(9)H_(10)O)` does not evolve any gas on reatement with Na-metal but on hydrolysis with dil. `H_(2)SO_(4)` gives `B(C_(9)H_(12)O_(2))` which on further treatement with alkaline solution of iodine gives an yellow precipitate. Also A on treatment with excess of conc. HBr gives `C(C_(9(H_(11)OBr)` as the major product. C on further treatment with `C_(2)H_(5)ONa//C_(2)H_(5)OH` followed by acidification of product gives D (an isomer of A). D on ozonolysis followed by work-up with dimethyl sulphide gives ortho hydroxyl benzaldehyde as one of the product. Answer the following three questions based on the above information. The statement that is true regarding A to D isA. it oxygen of A is labelled by `.^(18)O,D` will retain `.^(18)O`B. If A is hydrolyzed with `H_(2)O^(18)//H^(+)`, B will have `.^(18)O` on phenyl ringC. A can show both enantiomersim and diasterecomerismD. B can show both enantiomerism as well as diasterecomerism. |
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Answer» Correct Answer - a |
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| 42. |
Product B of the above reaction is:A. B. C. D. |
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Answer» Correct Answer - B |
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| 43. |
Find out X:A. B. C. D. |
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Answer» Correct Answer - C |
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| 44. |
The order of reactivity of the following alcohols towards HCl is : A. `1 gt 2 gt 3 gt 4`B. `1 gt 3 gt 2 gt 4`C. `4 gt 3 gt 2 gt 1`D. `4 gt 3 gt 1 gt 2` |
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Answer» Correct Answer - C |
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| 45. |
The order of solubility of A. `I gt II gt III`B. `I lt II lt III`C. `II gt III gt I`D. `II gt I gt III` |
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Answer» Correct Answer - C |
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| 46. |
The order of reactivity of the following alcohols towards HCl is : A. `1 gt 2 gt 3 gt 4`B. `1 gt 3 gt 2 gt 4`C. `4 gt 3 gt 2 gt 1`D. `4 gt 3 gt 1 gt 2` |
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Answer» Correct Answer - C |
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| 47. |
The order of solubility of A. `I gt II gt III`B. `I lt II lt III`C. `II gt III gt I`D. `II gt I gt III` |
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Answer» Correct Answer - C |
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| 48. |
Degydration of the following alcohols will be in order: A. `1 lt 2 lt 3 lt 4`B. `4 lt 3 lt 1 lt 2`C. `4 gt 2 gt 1 gt 3`D. `1 gt 3 gt 4 gt 2` |
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Answer» Correct Answer - C |
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| 49. |
Degydration of the following alcohols will be in order: A. `1 lt 2 lt 3 lt 4`B. `4 lt 3 lt 1 lt 2`C. `4 gt 2 gt 1 gt 3`D. `1 gt 3 gt 4 gt 2` |
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Answer» Correct Answer - C |
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| 50. |
Identify product D in this reactionA. B. C. `CHI_(3)`D. |
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Answer» Correct Answer - A |
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