Which of the following reactions end with same product ?
(a) `PhCh=CHCH_(2)OH overset(MnO_(2))rarr` ?
(b)
(c ) `PhCHO underset(Delta(5 - 6 hr))overset(AC_(2)O//ACO^(-))rarr overset(LAH)overset(MnO_(2))` ?

Options

A. a, b, c
B. a, c
C. b, c
D. a, b

Answer

B

Explanation

Product of (a) and (c ) is `PhCH = CH - CHO`,
Product of (b) is `PhCH = CHCH_(2)OH`
(b)
(c ) `PhCHOunderset(Delta(5 - 6 hr))overset(Ac_(2)O//AcOH)rarr PhCH = CHOOH overset(LAH)rarr PhCH = CHCH_(2)OH overset(MnO_(2))rarr PhCH = CH - C`