Identify the reagent(s) 'A' and condition(s) for the reaction
Biomolecules · Class 12 · JEE Main Previous Year Question
Identify the reagent(s) 'A' and condition(s) for the reaction
- a
; Anhydrous
- b✓
; UV light
- c
; dark, Anhydrous
- d
,
; UV light
Step 1: Identifying the Reaction Type — Benzene reacts with chlorine to form benzene hexachloride (BHC / Lindane) under specific conditions.
Step 2: Analyzing Conditions — This is a free radical addition reaction. It requires the presence of chlorine gas and ultraviolet (UV) light to generate the necessary radicals.
Step 3: Result Selection — Therefore, the reagent 'A' is chlorine gas and the condition is UV light. Correct option is (b).
Key Point: This reaction saturates all double bonds in the benzene ring to yield the non-aromatic product .
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