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Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B. O Conc.HI Δ A Zn. Δ B I

1. OH A = , B =
2. A = OH , B = O O
3. A = OH , B =
4. A = OH , B =

Correct answer: A = OH , B =

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