S_N1  reaction is feasible in:

1.
2.
3.
4.

Bottles containing C₆H₅I and C₆H₅CH₂I lost their original labels. They were labeled as A and B respectively for testing. A and B were separately taken in a test tube and boiled with NaOH solution. The end solution in each test tube was made acidic with dilute HNO₃ and then some AgNO₃ was added. A substance present in test tube B gave a yellow precipitate. The true statement among the following regarding the experiment is:
1. A was C₆H₅I 
2. A was C₆H₅CH₂I 
3. B was C₆H₅I 
4. Addition of HNO₃ was unnecessary 

Identify A and B in the chemical reaction:

1.
2.
3.
4.

The increasing order of the boiling points of the major products A, B and C of the following reactions will be :

(a).
(b).
(c).

1. C < A < B

2. B < C < A

3. A < B < C

4. A < C < B