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NEET levelSingle correct optionDifficulty 1 of 3hx001

Which reagent converts ethanol into chloroethane so that both by-products are gases, making purification easy?

A $HCl$ with anhydrous $ZnCl X_{2}$
B $PCl X_{5}$
C $SOCl X_{2}$
D $PCl X_{3}$

Answer: C

CH X_{3} CH X_{2} OH + SOCl X_{2} CH X_{3} CH X_{2} Cl + SO X_{2} ↑ + HCl ↑

. Both

SO X_{2}

and

HCl

escape as gases.

PCl X_{5}

leaves liquid

POCl X_{3}

,

PCl X_{3}

leaves

H X_{3} PO X_{3}

, and

HCl

/

ZnCl X_{2}

forms water.

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