Question

`CH_(3)CH_(2)NO_(2) underset(at 0^(@)C)overset(NaNO_(2)+HBr)(rarr) (A)`. `(A)` is
A. a.`CH_(3)CH_(2)OH`
B. b.`CH_(3)CH_(2)OH`
C. c.`CH_(3)underset(NO_(2))underset(|)(C )=N.OH`
D. d.`No reaction`

Answer 1

Correct Answer - C
The `1^(@) (RNO_(2))` group reacts with `HNO_(2) (NaNO_(2) + HBr rarr HNO_(2)+NaBr)` to give nitrolic acid, which gives blood red colour with `NaOH`.

So the answer is `(c )`.