Question

Which is/are correct statements?
(3) This is only affected in reduction to $2^{\circ }$ alcohol

These bonds are affected in esterification

• A. 1 and 4
• B. 1 and 2
• C. 1, 2 and 3
• D. 1, 2, 3 and 4

Answer 1

The correct option is D 1, 2, 3 and 4

1.

In this case nucleophile attacks on the carbon of oxirane ring which is highly substituted and reaction is $S_{N}1$ reaction.
2.

In this case nucleophile attack on less hindered carbon of the oxirane ring and reaction is $S_{N}2$ reaction.
3. $\frac{NaB{H}_4}{C{H}_{3}OH}\to$ this only affected in reduction to $2^{\circ }$ alcohol.
4. In etherification reaction carboxylic acid and alcohol give – OH and $H^{+}$ respectively.

These bonds are affected.
All 1, 2, 3 and 4 statements are correct.
So option (d) is correct.