Q. No.Select the correct option based on statements below:
Assertion (A):
Only a small amount of HCI is required in the reduction of nitro compounds with iron scrap and HCI in the presence of steam.
Reason (R):
FeCl2 formed gets hydrolyzed to release HCI during the reaction.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
In the conversion of nitromethane to methylamine, the reagent that is used is:
| 1. | \(\mathrm{SOCl}_2 \) | 2. | \(\mathrm{NaNH}_2 \) |
| 3. | \(\mathrm{PCl}_5 \) | 4. | \(\mathrm{Sn} / \mathrm{HCl}\) |
Select the correct option based on statements below:
| Assertion (A): | N-ethylbenzene sulphonamide is soluble in alkali. |
| Reason (R): | The hydrogen attached to nitrogen in sulphonamide is strongly acidic. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Match the compounds given in Column I with the items given in Column II.
| Column I | Column II |
| A. Benzene sulphonyl chloride | 1. Zwitter ion |
| B. Sulphanilic acid | 2. Hinsberg reagent |
| C. Alkyl diazonium salts | 3. Dyes |
| D. Aryl diazonium salts | 4. Conversion to alcohols |
Codes
| A | B | C | D | |
| 1. | 2 | 1 | 4 | 3 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 2 | 1 |
Match the reactions given in Column I with the statements given in Column II.
| Column I | Column II |
| A. Ammonolysis | 1. Amine with a lesser number of carbon atoms |
| B. Gabriel phthalimide synthesis | 2. Detection test for primary amines. |
| C. Hofmann bromamide reaction | 3. Reaction of phthalimide with KOH and R—X |
| D. Carbylamine reaction | 4. Reaction of alkyl halides with NH3 |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 1 | 2 |
A compound among the following that does not undergo an azo coupling reaction with benzene diazonium chloride is:
1. Aniline
2. Phenol
3. Anisole
4. Nitrobenzene
In nitration of benzene using a mixture of conc. H2SO4 and conc. HNO3, the species that initiates the reaction is :
1. NO2
2. NO+
3. NO2+
4. NO2-
The most effective reagent among the following to convert 2-phenylpropanamide into 2-phenylpropanamine is:
| 1. | Excess H2 |
| 2. | Br2 in aqueous NaOH |
| 3. | Iodine in the presence of phosphorus |
| 4. | LiAlH4 in ether |
The reagent among the following that does not reduce an aryl nitro compound to an amine is:
1. H2(excess) / Pt
2. LiAlH4 in ether
3. Fe and HCI
4. Sn and HCI
Which of the following bases is the strongest in an aqueous medium?
1. CH3NH2
2. NCCH2NH2
3. (CH3)2NH
4. C6H5NHCH3
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