Two organic compound A and B both containing only carbon and hydrogen, on quanctities analysis gave the same percentage composition by weight:
`C=(12//13)xx100%, H=(1//3)xx100%`
A decoulourises bromine water but B does not. A and B respectively are
A. `C_(6)H_(6), C_(2)H_(2)`
B. `C_(2)H_(2),C_(6)H_(6)`
C. `C_(2)H_(4), C_(2)H_(6)`
D. `C_(2)H_(2), C_(3)H_(8)`