MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How many isomers of C4H8O when reacts with CH3MgBr followed by acidification to alcohol (only consider carbonyl isomers and Including stereoisomers)? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 2. |
What is used to carry out the following conversion? |
| A. | hydroboration oxidation followed by Jones oxidation |
| B. | Wacker oxidation followed by haloform reaction |
| C. | oxymercuration-determination followed by Jones oxidation |
| D. | ozonolysis followed by haloform reaction |
| Answer» C. oxymercuration-determination followed by Jones oxidation | |
| 3. |
How can we prepare RR’ R” OH by the action of excess of a suitable Grignard reagent on which of the following reactants? |
| A. | nitrile or an aldehyde |
| B. | ester or an alcohol |
| C. | aldehyde or a ketone |
| D. | ketone or an ester |
| Answer» B. ester or an alcohol | |
| 4. |
Which is the correct combination of reagent which can carry out following conversion? |
| A. | (i) CH3 – MgBr then H+ (ii) H2S04 / ∆ (iii) NH2 – NH2 / KOH |
| B. | (i) (CH3)2 CuLi then H+ (ii) NaBH4 EtOH (iii) H2S04 / ∆ |
| C. | (i) CH3 – Li, then H+ (ii) PCC / ∆ |
| D. | (i) NaBH4 ∙ CeCl3 then H+ (ii) MnO2 (iii) CH3 – Li |
| Answer» D. (i) NaBH4 ∙ CeCl3 then H+ (ii) MnO2 (iii) CH3 – Li | |
| 5. |
What will be the product for the given reactant and reagents? |
| A. | a) |
| B. | b) |
| C. | c) |
| D. | d) |
| Answer» D. d) | |
| 6. |
Which of the reagent will give effective transformation of given compounds? |
| A. | CH2N2 |
| B. | CH3Li |
| C. | (CH3)2CuLi |
| D. | Ph3P = CH2 |
| Answer» E. | |
| 7. |
Which is the suitable catalyst for bringing out the transformation given below? |
| A. | BF3. Et20 |
| B. | NaOEt |
| C. | tungsten lamp |
| D. | dibenzoyl peroxide |
| Answer» B. NaOEt | |