A : Lithium has highest ionization enthalph among group-1 elements.
R : Lithium has hohest reducing power in grup-1

Options

A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.

Answer

C

Explanation

(i)`E^0Li^(+)//Li= - 3.04 , Na^(+)//Na=-2.71` which is least among the alkali metals.
(ii)Hydration enthalpy /`KJ mol^(-1)`
Li= -506 , Na=-406 , Cs has the least `DeltaH_(hyd)=-276`