The reaction of `SOCI_(2) on alkanols to from alky 1 chlorides gives good yields because

Options

A. alkyl chlorides are immiscible with `SOCI_(2)`
B. the reaction does not oC Cur via intermediate formation of an alky chlorosulphite
C. alcohol and `SOCI_(2)` are soluble in water
D. the other products of the reaction are gaseous and escape out

Explanation

To answer the question regarding why the reaction of thionyl chloride (SOCl2) with alkanols to form alkyl chlorides gives good yields, we can break down the reasoning into several steps:

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- The reaction involves thionyl chloride (SOCl2) reacting with an alcohol (alkanol) to produce an alkyl chloride (RCl), along with by-products of sulfur dioxide (SO2) and hydrogen chloride (HCl).

2. **Formation of By-products**:
- When alcohol reacts with SOCl2, the reaction produces gases (SO2 and HCl) as by-products. The formation of gases is significant because gases tend to escape from the reaction mixture, driving the reaction forward according to Le Chatelier's principle.

3. **Le Chatelier's Principle**:
- According to Le Chatelier's principle, if a system at equilibrium is disturbed by changing the conditions, the system shifts in the direction that counteracts the change. In this case, the escape of gaseous products (SO2 and HCl) shifts the equilibrium towards the formation of more alkyl chloride, thus increasing the yield.

4. **No Side Products**:
- The reaction is favored because the gaseous products do not remain in the solution. This minimizes any potential side reactions that could occur if solid or liquid by-products were formed, which could interfere with the desired product.

5. **Conclusion**:
- Therefore, the good yields of alkyl chlorides from the reaction of SOCl2 with alkanols can be attributed to the escape of gaseous by-products (SO2 and HCl), which drives the reaction to completion.

### Final Answer:
The reaction of SOCl2 on alkanols to form alkyl chlorides gives good yields primarily because the gaseous by-products (SO2 and HCl) escape from the reaction mixture, driving the reaction forward and minimizing side reactions.

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