A halide with formula `C_(6)H_(13)Br` gave two isomeric alkenes A and B with formula `C_(6)H_(12)`. On reductive ozonolysis of mixture of A and B following compounds were obtained `CH_(3)COCH_(3), CH_(3)CHO, CH_(3)CH_(2)CHO` and `(CH_(3))_(2)CHCHO`. Thehalide is

Options

A. `2-` Bromohexane
B. `3-` Bromo `-2-` methylpentane
C. `2,2-` Dimethyl `-l` bromonhexane
D. Unpredicatable

Answer

`b`

Explanation

Alkene has six `C` atoms, Combine two products of ozonlysis containing three `C` atoms each.
i.
ii. Combine two products of ozobnlysis containing four `C` and two `C` atomns to get another alkene.

Alkene `(B) = overset(HBr)(rarr) c overset(5)(H)_(3) - C overset(4)(H)_(2)- underset(Br)underset(|)overset(3)(C)H - underset(2)overset(CH_(3))overset(|)(CH) - underset(1)(C)H_(3)`
Alkene `(A)` and `(B)` underset(KOH)overset(Alc.)(larr) 3-` Bromo `-2-` methyl pentane.