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JEE Main20262 April 2026Evening ShiftChemistryAlcohols Phenols and EthersActual

A molecule (X) with following structure under mild acidic condition is hydrolysed to produce (Y) and (Z). Identify the correct statements about (Y) and (Z). A. Both (Y) and (Z) have same molar mass. B. (Y) and (Z) can be distinguished from each other by NaHCO₃ . C. (Y) and (Z) react with HCN with same rates. D. (Y) and (Z) undergo addition reaction with 2,4 -DNP. Choose the correct answer from the options given below

Options

  1. AA, B and C Only
  2. BB and C Only
  3. CC and D Only
  4. DA and D Only

Correct answer

D. A and D Only

Step-by-step solution

Molecule (X) is an ether with two enol ether functional groups attached to the central oxygen atom. On mild acidic hydrolysis, an enol ether cleaves to give a carbonyl compound and an alcohol. The 1 -propenyl side (CH₃-CH=CH-O-) hydrolyses to propanal, CH₃CH₂CHO . The isopropenyl side (-O-C(CH₃)=CH₂) hydrolyses to the enol of acetone, which tautomerises to acetone, CH₃COCH₃ . Therefore, (Y) and (Z) are propanal and acetone. Statement A: Both (Y) and (Z) have the same molar mass. Propanal and acetone are functional

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