A) pentanal
B) 2-pentanone
C) 3-pentanone
D) n-amyl alcohol
Correct Answer: C
Solution :
[c] Since, the compound X yeilds phenyl hydrazone and gives negative response to the iodoform test and Tollen's test, it must contain a C = O group but is neither a methyl ketone nor an aldehyde. |
The structure of X could be |
\[\underset{3-\text{pentanone}}{\mathop{C{{H}_{3}}-C{{H}_{2}}-\overset{\overset{\text{O}}{\mathop{|\,\,|}}\,}{\mathop{C}}\,-C{{H}_{2}}-C{{H}_{3}}}}\,\]having molecular formula \[{{C}_{5}}{{H}_{10}}O.\] |
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