Question

In which of the following reactions $POCl_3$ is formed as one of the products?

• A. $PCl_3 + SO_3 \rightarrow$
• B. $PCl_3 + O_2 \rightarrow$
• C. $PCl_3 + SO_2 Cl_2 \rightarrow$
• D. $PCl_5 + C_2H_5 OH \rightarrow$

Answer 1

Answer: (A), (B), (C), (D)

A, B, C, D

Answer 2

Let's analyze each reaction to determine if $POCl_3$ is formed:

A. $PCl_3 + SO_3 \rightarrow POCl_3 + SO_2$

$PCl_3$ reacts with $SO_3$ to form $POCl_3$ and $SO_2$. This is an oxidation reaction.

B. $2PCl_3 + O_2 \rightarrow 2POCl_3$

$PCl_3$ reacts with $O_2$ to directly form $POCl_3$.

C. $PCl_3 + SO_2Cl_2 \rightarrow POCl_3 + SOCl_2$

$PCl_3$ reacts with $SO_2Cl_2$ to form $POCl_3$ and $SOCl_2$.

D. $PCl_5 + C_2H_5OH \rightarrow C_2H_5Cl + HCl + POCl_3$

$PCl_5$ reacts with $C_2H_5OH$ (ethanol) to form $C_2H_5Cl$ (ethyl chloride), $HCl$, and $POCl_3$. This is a common reaction for converting alcohols to alkyl chlorides.

In all four reactions, $POCl_3$ is formed as a product.