STANDARDChemistry-Aromatic Compounds
STANDARD Chemistry Reactions of Benzene Derivatives MCQ Question
Type: MCQ-conceptual-Medium
Identify X, Y and Z in the given sequence of reactions.
A
X = HBr ; Y = NaNO₂ + HCl ; Z = heat
B
X = Br₂/CCl₄ ; Y = HNO₂ ; Z = CH₃OH
C
X = Br₂/CuBr ; Y = NaNO₂ + HCl ; Z = NaOH
D
X = Br₂(aq.) ; Y = NaNO₂ + HCl(0-4°C) ; Z = H₃PO₂ + H₂O
Correct Answer
Option D
Detailed Explanation
The reaction involves bromination followed by diazotization and reduction. Br₂(aq.) is used for bromination, NaNO₂ + HCl at low temperature for diazotization, and H₃PO₂ + H₂O for reduction.
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