At $25^oC$, the dissociation constant of a base, BOH, is $1.0\times10^{-12}$ The concentration of hydroxyl ions in 0.01M aqueous solution of the base would be :-

Question

( A ) $1.0\times10^-6 mole L^-1$
( B ) $1.0\times10^-5 mole L^-1$
( C ) $2.0\times10^-6 mole L^-1$
( D ) $1.0\times10^-7 mole L^-1$