A substance `A_(2)H_(4)` is dissolved in water to form aqueous `K_(b_(1))=4xx10^(-5)` and `K_(b_(2))=10^(-8)` respectively then which of the option are correct regarding approximate concentration of species when `0.1` M aqueous solution of `A_(2)H_(4)` is taken:

Options

A. `[A_(2)H_(6)^(2+)]=10^(-8)M`
B. `[H^(+)]=5xx10^(-12)M`
C. `[A_(2)H_(5)^(2)]=2xx10^(-3)M`
D. `[OH^(-)]=2xx10^(-3)M`

Answer

a,b,c,d