Amines

Consider the following sequence of reactions. [figure] The percentage of nitrogen in the yellow product (X) formed is %. (Nearest Integer) (Given Molar mass in g mol-1 H : 1, C : 12, N : 14)

Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all intermediate reactions) [figure]

1. Benzene
2. Phenol
3. Propanol
4. Chlorobenzene

Consider the three aromatic molecules (P, Q and R) whose structures have been given below : [figure] The correct order regarding the reactivity of these compounds with Ph- N N Cl under optimum but slightly acidic medium is :

1. P > Q > R
2. R > P > Q
3. R > Q > P
4. P > R > Q

Identify [A], [B] and [C], respectively in the following reaction sequence : [figure]

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

In the following reactions, which one is NOT correct?

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

When a concentrated solution of sulphanilic acid and 1-naphthylamine is treated with nitrous acid (273 K) and acidified with acetic acid, the mass (g) of 0.1 mole of product formed is: (Given molar mass in g mol-1 H : 1, C : 12, N : 14, O : 16, S : 32)

1. 330
2. 33
3. 343
4. 66

Which one of the following reaction sequences will give an azo dye?

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

Consider the following sequence of reactions. [figure] Total number of sp3 hybridised carbon atoms in the major product C formed is .

The products formed in the following reaction sequence are : [figure]

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

If 279 g of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will be g. (nearest integer) (consider complete conversion).

9.3 g of pure aniline upon diazotisation followed by coupling with phenol gives an orange dye. The mass of orange dye produced (assume 100% yield/conversion) is g. (nearest integer)

The azo-dye (Y) formed in the following reactions is Sulphanilic acid + NaNO2 + CH3COOH X. [figure]

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

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 product A formed in the following reaction is [figure]

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