Question

Refer the attached picture. ​

Answer 1

I think the alkyl halide used in wurtz rxn is isobutane.

because isobutane is that alkane which will form C8H18 molecule having identical 2 tertiary positions .

so the only 1 tertiary bromide isomer can be formed.
(and sorry abhi copy pen nhi he warna poora bata deta)