MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A compound P on treating with concentrated H2SO4 forms R . The product R on heating at 460K forms a zwitter ionic compound. Identify P, R respectively. |
| A. | Aniline; anilinium hydrogensulphate |
| B. | Aniline; sulphanilic acid |
| C. | Anilinium hydrogensulphate; sulphanilic acid |
| D. | Sulphanilic acid; anilinium hydrogensulphate |
| Answer» B. Aniline; sulphanilic acid | |
| 2. |
It is possible to obtain para isomers of anilines as the major product in electrophilic ring substitution of aniline. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is the order of quantities of all isomers of nitroaniline formed on the reaction of aniline with nitric acid and sulphuric acid at 288K? |
| A. | ortho > meta > para |
| B. | para > ortho > meta |
| C. | para > meta > ortho |
| D. | meta > para > ortho |
| Answer» D. meta > para > ortho | |
| 4. |
What is the major product formed when aniline reacts with bromine water at room temperature? |
| A. | 2-Bromoaniline |
| B. | 4-Bromoanline |
| C. | 2,6-Dibromoaniline |
| D. | 2,4,6-Tribromoaniline |
| Answer» E. | |
| 5. |
The activating effect of -NHCOCH3 group is ______ as compared to -NH2 group. |
| A. | less |
| B. | same |
| C. | more |
| D. | very high |
| Answer» B. same | |
| 6. |
Aniline is a _______ directing compound. |
| A. | ortho |
| B. | meta |
| C. | ortho and para |
| D. | ortho, meta and para |
| Answer» D. ortho, meta and para | |
| 7. |
Which of the following reactions/tests does not help in the distinction between ethylamine and diethylamine? |
| A. | Carbylamine test |
| B. | Hinsberg s test |
| C. | Reaction with HNO<sub>2</sub> |
| D. | Reaction with CH<sub>3</sub>CH<sub>2</sub>Br |
| Answer» E. | |
| 8. |
Which of the following amines will form a product that is soluble in KOH, on reaction with Hinsberg s reagent? |
| A. | Isopropylamine |
| B. | Diethylamine |
| C. | N,N-Dimethylpropylamine |
| D. | N,N-Dimethylaniline |
| Answer» B. Diethylamine | |
| 9. |
Which of the following amines, on reaction with benzenesulphonyl chloride, will give a sulphonamide that is insoluble in alkali? |
| A. | Ethylamine |
| B. | Ethylmethylamine |
| C. | Trimethylamine |
| D. | Aniline |
| Answer» C. Trimethylamine | |
| 10. |
Hinsberg s reagent is _______ |
| A. | benzenesulfonic acid |
| B. | benzenesulphonyl chloride |
| C. | p-toluenesulphonyl chloride |
| D. | chlorosulphuric acid |
| Answer» C. p-toluenesulphonyl chloride | |
| 11. |
Diethylamine reacts with nitrous acid in the cold to form _______ |
| A. | diazonium salt |
| B. | alcohol |
| C. | imine |
| D. | nitrosoamine |
| Answer» E. | |
| 12. |
Which of the following is not a final product of the reaction between propylamine and nitrous acid? |
| A. | CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>N<sub>2</sub>Cl |
| B. | CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>OH |
| C. | N<sub>2</sub> gas |
| D. | H<sub>2</sub>O |
| Answer» B. CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>OH | |
| 13. |
Tertiary amines dissolve in nitrous acid to form corresponding salts. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
Which gas is produced when ethanamine reacts with nitrous acid? |
| A. | N<sub>2</sub> |
| B. | H<sub>2</sub> |
| C. | HCl |
| D. | O<sub>2</sub> |
| Answer» B. H<sub>2</sub> | |