JEE Main 2022 · 28 Jul · Shift 2 · Chemistry Q44

ChemistrySingle correct+4 / -1Question 44 of 90

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.

A = propan-2-ol, B = propene

A = phenol, B = 1,4-benzoquinone

A = 2-isopropylphenol, B = cumene

A = phenol, B = benzene

Answer and worked solution

Official answer: D

HI cleaves an aryl alkyl ether at the alkyl-O bond: A is phenol (and isopropyl iodide).

Zinc dust reduces phenol to benzene: B.

(D)

Topics:Ethers Phenols

JEE Main 2022 · 28 Jul · Shift 2, Chemistry question 44