Q. Which statement is correct for the conversion of $RO H$ to $RX$ by reagents (A) $(SOC l_{2}, PB r_{3}, PC l_{3}, P I_{3}$ , and $T s Cl)$ compared to using $H X$ ?

77 153 Alcohols Phenols and Ethers Report Error

A

No rearrangement occurs with predictable stereochemistry by reagents $(A)$

B

Reagents $(A)$ are not useful for $3^{\circ}$ alcohols, while $H X$ reacts easily with $3^{\circ}$ alcohols involving no rearrangement.

C

Reagents $(A)$ must be used in anhydrous conditions because all react vigorously with $H_{2} O$ and they produce harmful gases ( $S O_{2}, H Cl, H B r$ , and $H I)$ .

D

All.

Solution:

Correct answer is (d) All.