Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?
a. | Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc.HNO3 |
b. | Acetic anhydride/pyridine followed by conc. H2SO4 + conc. HNO3 |
c. | Dil. HCI followed by reaction with conc. H2SO4 + conc. HNO3 |
d. | Reaction with conc. HNO3 + conc. H2SO4 |
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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 |
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 |
Assertion (A): | Acylation of amines gives a monosubstituted product whereas alkylation of amines gives a polysubstituted product. |
Reason (R): | Acyl group sterically hinders the approach of further acyl groups. |
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. |
Given below are two statements:
Assertion (A): | Hofmann's bromamide reaction is given by primary amines. |
Reason (R): | Primary amines one more basic than secondary amines. |
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. |
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. |
Given below are two statements:
Assertion (A): | N, N-diethyl benzene sulphonamide is insoluble in alkali. |
Reason (R): | Sulphonyl group attached to the nitrogen atom is a strong electron-withdrawing group. |
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. |
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. |
Given below are two statements:
Assertion (A): | Aromatic 1o amines can be prepared by Gabriel phthalimide synthesis. |
Reason (R): | Aryl halides undergo nucleophilic substitution with anion formed by phthalimide. |
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. |
Given below are two statements:
Assertion (A): | Acetanilide is less basic aniline. |
Reason (R): | Acetylation of aniline results in a decrease of electron density on nitrogen. |
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. |