A compound [A] of molecular formula `C_(4)H_(9)Br` yields a compound [B] of molecular formula `C_(4)H_(10)O` when reated with aqueous `NaOH`. On oxidation [B] gives a ketone [C]. The vigorous oxidation of ketone gives ethanoic acid. Deduce the structure of A, B and C.

Explanation

`C_(2)H_(5)-underset(Br)underset(|)(CH)-CH_(3)overset("aq NaOH")underset("NaBr")to (C_(2)H_(5))-underset(OH)underset(|)(CH)-CH_(3)overset("oxidation")to (CH_(3))-overset(O)overset(||)C-CH_(3)overset("Vigorous")underset("oxide")to2CH_(3)COOH`