Consider the following three anions 

 

 

HX, HY and HZ are conjugate acids of X,Y and Z respectively 
Choose the correct statement(s)

HY on warming with mercury (II) sulphate and dilute sulphuric acid at 333K forms a ketone that has lower boiling point than propan-1-ol

In each molecule of HX, HY are HZ, there and two mutually particular nodal planes, for$\pi$  bonds and each nodal plane is perpendicular to molecular axis.

HZ is more stable than HY.

$\left|p^{Ka}\left(HX\right)-p^{Ka}\left(HY\right)\right|<\left|p^{Ka}\left(HY\right)-p^{Ka}\left(HZ\right)\right|$