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Chemistry Question on Haloalkanes and Haloarenes

Which among the following reactions does NOT form alkyl halides?

A

Alcohol reacts with HCl in presence of anhydrous ZnCl2

B

Alcohol reacts with halogen in presence of sunlight

C

Alcohol reacts with HI in presence of NaI/H3PO4.

D

Alcohol reacts with HBr in presence of NaBr,H2SO4

Answer

Alcohol reacts with halogen in presence of sunlight

Explanation

Solution

The reaction that does not form alkyl halides is option (B) where alcohol reacts with a halogen in the presence of sunlight.
In this reaction, the alcohol undergoes a substitution reaction with the halogen (such as chlorine or bromine) to form an alkyl halide. However, this reaction does not require the presence of any catalyst or reagent. The sunlight is used to initiate the reaction by providing energy for the bond-breaking and bond-forming processes.