Amines

Following is a confirmatory test for aromatic primary amines. Identify reagent (A) and (B). [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The products A and B formed in the following reaction scheme are respectively [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The arenium ion which is not involved in the bromination of Aniline is .

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The product A formed in the following reaction is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Identify B formed in the reaction. Cl-(CH2)4-Cl excess NH3 A NaOH B + H2O + NaCl

1. [figure]
2. [figure]
3. -Cl +NH3-(CH2)4- +NH3Cl-
4. H2N-(CH2)4-NH2

9.3 g of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is 100% completed is 10-1 g. (Given molar mass in g mol-1 N : 14, O : 16, C : 12, H : 1)