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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following isnot a synthesis of benzophenone ? `(C_(6)H_(5)COC_(6)H_(5))`A. `C_(6)H_(5) + C_(6)H_(5)COCloverset(AlCl_(3))rarr`B. `(C_(6)H_(5))_(2)CHOHunderset("acetone")overset("H_(2)CrO_(4))rarr`C. `(C_(6)H_(5))_(2)C=CH_(2)underset((ii)Zn,HOAc)overset((i)O_(3))rarr`D. `C_(6)H_(5)COOH + 2C_(6)H_(5)Lioverset((i)"Ether")underset((ii)H_(2)O)rarr` |
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Answer» Correct Answer - b |
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| 2. |
Compound p and R upon ozonolysis produce Q and S, respectively . The molecular fromular of Q and S id `C_(8)H_(8)O`. Q undergoes Cannizzaro reaction but not halofrom reaction , whereas S undergoes halofrom reaction but not Cannizzaro reaction . ` (i) Punderset((ii)Zn//H_(2)O)overset((i)O_(3)//CH_(2)Cl_(2))toQunderset((C_(8)H_(8)O))` (ii) `Runderset((ii)Zn//H_(2)O)overset((i)O_(3)//CH_(2)Cl_(2))toSunderset((C_(8)H_(8)O))` The option (s) with suitable combination of P and R, respectively , is(are)A. B. C. D. |
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Answer» Correct Answer - A::B::C |
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| 3. |
The major product obtained in the following A. B. C. D. |
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Answer» Correct Answer - A |
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| 4. |
In the following sythesis ther major prouduct formed is A. B. C. D. |
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Answer» Correct Answer - C |
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| 5. |
Banzaldehyde can be prepared slectively byA. `"Toluene"underset((CH_(3)CO)_(2)O)overset(CrO_(3))rarr`B. `"Toluene"underset((CH_(3)CO)_(2)O)overset(CrO_(2)Cl_(2))rarr`C. `"Toluene"underset(KOH_(aq.))overset(KMnO_(4))rarr`D. `C_(6)H_(5)CH_(2)OHunderset("Pyridibne"//HCl)overset(CrO_(3))rarr` |
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Answer» Correct Answer - (d,a,b) |
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| 6. |
The mojor product X in the above reaction isA. B. C. D. |
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Answer» Correct Answer - c |
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| 7. |
The only CORRECT combination that given two different carboxylic acids isA. `(IV)(i)(Q)`B. `(II)(ii)(R)`C. `(I)(iii)(s)`D. `(III)(iii)(Q)` |
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Answer» Correct Answer - D |
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| 8. |
The only CORRECT combination in which the reaction proceeds through radical mechanism isA. `(IV)(i)(Q)`B. `(III)(ii)(P)`C. `(II)(iii)(R)`D. `(I)(ii)(R)` |
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Answer» Correct Answer - D |
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| 9. |
The only CORRECT combination in which the reaction proceeds through radical mechanism isA. `(IV)(i)(Q)`B. `(III)(ii)(P)`C. `(II)(iii)(R)`D. `(I)(ii)(R)` |
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Answer» Correct Answer - D |
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| 10. |
Sodium phenoxide when heated with `CO_(2)` under pressure at `125^(@) C` yield a product which on acetylation gives product `C` A. B. C. D. |
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Answer» Correct Answer - A |
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| 11. |
4-Methyl benzene sulphoic acid reacts with sodium acetate to give :A. B. C. D. |
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Answer» Correct Answer - A |
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| 12. |
In a Cannizaro reaction the intermediate that will be the best hydride donor isA. `C_(6)H_(5)-overset(H)overset(|)underset(OH)underset(|)(C)-O^(-)`B. `C_(6)H_(5)-overset(H)overset(|)underset(O^(-))underset(|)(C)-O^(-)`C. D. |
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Answer» Correct Answer - D |
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