Q135 / 200 · MHT CET - Medical 2026 (21 April Shift 1) · Chemistry
Which of the following reagents is used for converting alcohol to alkyl chloride?
- Correct answerA$\text{SOCl}_2$
- B$\text{H}_2\text{SO}_4$
- CHCl only
- DPCC
Solution
Thionyl chloride ($\text{SOCl}_2$) is used to convert alcohols to alkyl chlorides.
The reaction is given by:
$\text{R-OH} + \text{SOCl}_2 \rightarrow \text{R-Cl} + \text{SO}_2 \uparrow + \text{HCl} \uparrow$
This method is preferred because the byproducts, $\text{SO}_2$ and $\text{HCl}$, are gases that escape from the reaction mixture, leaving behind pure alkyl chloride.
Answer: $\text{SOCl}_2$
The reaction is given by:
$\text{R-OH} + \text{SOCl}_2 \rightarrow \text{R-Cl} + \text{SO}_2 \uparrow + \text{HCl} \uparrow$
This method is preferred because the byproducts, $\text{SO}_2$ and $\text{HCl}$, are gases that escape from the reaction mixture, leaving behind pure alkyl chloride.
Answer: $\text{SOCl}_2$
Hence, the correct answer is option: 'A'.