Step 1: Understanding chloretone formation.
Chloretone is formed by the reaction of chloroform with acetone, resulting in the formation of a compound used as an antiseptic and sedative. This reaction is a halogenation reaction that leads to the formation of chloretone.
Step 2: Analysis of options.
(A) Formaldehyde: Chloretone is not formed by the reaction of chloroform and formaldehyde.
(B) Acetaldehyde: Chloretone is not formed by the reaction of chloroform and acetaldehyde.
(C) Acetone: Correct — Chloretone is formed when chloroform reacts with acetone.
(D) Benzaldehyde: Chloretone is not formed by the reaction of chloroform and benzaldehyde.
Step 3: Conclusion.
The correct answer is (C) because chloretone is formed when chloroform reacts with acetone.