The number of monochloro structural isomers formed on free radical monochlorination of (CH₃)₂CHCH₂CH₃ is:
1. 5
2. 3
3. 4
4. 6

Consider the following reaction:

What is the major product A?

1.		2.
3.		4.	None of the above

Consider the following reaction.
The product A and B are respectively:
1. A= R-CH₂-CN; B= R-CH₂-NC
2. A= R-CH₂-NC; B= R-CH₂-CN
3. A= R-NCH-CH₃; B= R-CH₂-CN
4. A= R-CH₂-NC; B= R-CHN-CH₃

In the following pairs of halogen compounds, the pair that would undergo S_N2 reaction faster:

1.
2.
3.
4.

Correct statement among the following is:

The correct statement(s) is/are-
1. a, b
2. b, c
3. a, c, d
4. b, d