A) \[C{{H}_{3}}-C{{H}_{2}}-CHO\]
B) \[C{{H}_{2}}=CH-C{{H}_{2}}OH\]
C) \[C{{H}_{3}}-CO-C{{H}_{3}}\]
D) \[C{{H}_{2}}=CH-O-C{{H}_{3}}\]
Correct Answer: D
Solution :
[d] Negative reaction with 2,4-dinitrophenyl-hydrazine indicates absence of aldehydic (option a) and ketonic (option c) group, while negative reaction with metallic sodium indicates absence of an alcoholic group (option b), hence the organic compound, \[{{C}_{3}}{{H}_{6}}O\] is \[C{{H}_{2}}=CHOC{{H}_{3}}\] (option d).
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