Which reagent transforms nitromethane into methylamine?
1. Zn/HCl
2. Zn/NaOH
3. Zn/C2H5OH
4. Ni/H2
The reagent that is used to convert acetamide into methyl amine is:
1. NaOH-Br2
2. Soda lime
3. Hot conc. H2SO4
4. PCl5
Which of the following bases is the strongest in an aqueous medium?
1. CH3NH2
2. NCCH2NH2
3. (CH3)2NH
4. C6H5NHCH3
The final product C in the below mentioned reaction is:
\(\xrightarrow[]{Ac_2O}\ A\ \xrightarrow[CH_3COOH]{Br_2}\ B\ \xrightarrow[H^+]{H_2O}\ C\)
1. | 2. | ||
3. | 4. |
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 |
1. | 2. | ||
3. | 4. |
Based on the statements given, which option is correct?
Assertion (A): | Nitration of aniline at a low temperature gives 47% m-nitroaniline. |
Reason (R): | In acidic medium, group is converted into group which is m-directing. |
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. |
Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:
1. | 2. | ||
3. | 4. |