Which of the following is most reactive to electrophilic substitution?
1. | Nitrobenzene | 2. | Aniline |
3. | Aniline hydrochloric | 4. | n-Acetylaniline |
Which of the following amines doesn't give the carbylamine reaction?
1. | Ethylamine | 2. | Dimethylamine |
3. | Methylamine | 4. | Phenylamine |
Whose melting point is the highest?
1. | Primary amines | 2. | Secondary amines |
3. | Tertiary amines | 4. | Quaternary amines |
The following reaction is the best method to introduce F to benzene:
The structure of intermediate compound A is:
1. | 2. | ||
3. | 4. |
1. CH3NH2
2. NCCH2NH2
3. (CH3)2NH
4. C6H5NHCH3
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
1. | Excess H2 |
2. | Br2 in aqueous NaOH |
3. | Iodine in the presence of phosphorus |
4. | LiAlH4 in ether |
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
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 |