Aldehydes, Ketones and Carboxylic Acids — Chemistry STD 12 Science — Question

Atomic mass of $\mathrm{K}=39, \mathrm{Mn}=55, \mathrm{O}=16]$

Statement $I :$ The boiling points of the following hydrides of group $16$ elements increases in the order -
$H _{2} O < H _{2} S < H _{2} Se < H _{2} \text { Te. }$

Statement $II :$ The boiling points of these hydrides increase with increase in molar mass.
In the light of the above statements, choose the most appropriate answer from the options given below

Where $k_d\, =$ Dissociation constant