The interaction energy of London forces between two particles is proportional to r^x, where r is the distance between the particles. The value of x is :

The number of non-ionisable hydrogen atoms present in the final product obtained from the hydrolysis of PCl₅ is :

The bond order and magnetic behaviour of $$O_2^ - $$ ion are respectively :

Given below are two statements : one is labelled as Assertion (A) and other is labelled as Reason (R).

Assertion (A) : Sucrose is a disaccharide and a non-reducing sugar.

Reason (R) : Sucrose involves glycosidic linkage between C₁ of $$\beta$$-glucose and C₂ of $$\alpha$$-fructose.

Choose the most appropriate answer from the options given below :