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With which two hydrogen halides is the peroxide effect not observed?
AHCl and HF
BHBr and HI
CHBr and HF
DHCl and HI
Answer & Solution
Correct answer: D. HCl and HI
1. The effect is seen with hydrogen bromide.
2. Two other halides are excluded explicitly.
3. The peroxide effect is not observed in addition of HCl and HI.
4. So the answer is HCl and HI.
_Source: NCERT Class XI Chemistry Part II, Unit 9 'Hydrocarbons'_
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