Per NCERT §9.3.6, the peroxide effect is observed only with which hydrogen halide?
AHCl only
BHI only
CHBr only
DHF only
Answer & Solution
Correct answer: C. HBr only
NCERT §9.3.6: H-Cl too strong to cleave; H-I weak but I• combines back to I₂. Only HBr fits the energy window.
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