JEE MainChemistryAlcohols Phenols and Ethers
A molecule (X), 2 -(allyloxy)propene, under mild acidic conditions is hydrolysed to produce (Y) and (Z). Identify the correct statements about (Y) and (Z). A. (Y) and (Z) are structural isomers. B. Both (Y) and (Z) decolorize bromine water. C. Only one of them forms a yellow precipitate with NaOI. D. Only one of them gives effervescence with Na metal. Choose the correct answer from the options given below:
Options
- AA, C and D Only
- BA, B and C Only
- CB, C and D Only
- DA and C Only
Correct answer
A. A, C and D Only
Step-by-step solution
The structure of 2 -(allyloxy)propene is CH₂=C(CH₃)-O-CH₂-CH=CH₂ . Under mild acidic conditions, the enol ether linkage is hydrolysed. The cleavage occurs at the O-C(sp^2) bond. The enol ether part is converted to a ketone, and the alkoxy part becomes an alcohol. The hydrolysis yields acetone, CH₃COCH₃ , and allyl alcohol, HO-CH₂-CH=CH₂ . Statement A: Acetone and allyl alcohol both have the same molecular formula C₃H₆O . They are structural isomers. Statement A is true. Statement B: Allyl alcohol contains a carbon-