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JEE Main levelOne or more correct optionsDifficulty 2 of 3nm143

Select the correct statements about $C X_{3} H X_{6} O$ isomers.

Aprop-2-en-1-ol is an isomer of propanal
Bpropanal and propanone are position isomers
Cpropanal and propanone are functional isomers
Dprop-2-en-1-ol and propanal are both aldehydes

Answer: A, C

Propanal (aldehyde) and propanone (ketone) differ in functional group, so functional isomers. Prop-2-en-1-ol,

CH X_{2} = CHCH X_{2} OH

, is

C X_{3} H X_{6} O

and so isomeric with propanal, but it is an unsaturated alcohol, not an aldehyde.

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