An organic compound 'X' having molecular formula `C_(5)H_(10)O` yield phenylhydrazone and gives negative response to the iodoform test and Tollens test . It produces n-pentane on reduction. 'X' could be

Options

A. 2 - pentanone
B. 3 - pentanone
C. n - amyl alcohol
D. pentanal

Answer

B

Explanation

It does not give iodoform test due to absence of group. It also does, not give Tollen.s test. On reduction it gives n - pentane
`H_(3)C-CH_(2)-underset(O)underset(||)C-CH_(2)-CH_(3) overset("reduction")underset(Zn-Hg//HCl)rarr underset("n - pentane")(CH_(3)-CH_(2)-CH_(2)-CH_(2)-CH_(3))`