Some statements about Henry's constant$\left({\mathrm{K}}_{\mathrm{H}}\right)$ are given below.

A) ${\mathrm{K}}_{\mathrm{H}}$has no units 

B) ${\mathrm{K}}_{\mathrm{H}}$value of a gas remains the same irrespective of the solvent involved .

C) Lesser the value of  ${\mathrm{K}}_{\mathrm{H} }$at a given pressure and temperature, lesser the solubility of gas in a given solvent.

D). At 298 K,  ${\mathrm{K}}_{\mathrm{H}}$value of ${\mathrm{O}}_2$is more than that of ${\mathrm{N}}_2$ when dissolved in water

Identify the correct and incorrect statements