Assertion (A) : Ionisation energy (I.E_(1)) of Ga is less than Al. Reason (R) :Ga has a larger atomic size than Al.

Assertion (A) : Ionisation energy (I.E_(1)) of Ga is less than Al. Re

1.	Assertion (A) : Ionisation energy (I.E_(1)) of Ga is less than Al. Reason (R) :Ga has a larger atomic size than Al.
Answer» Both A and R are TRUE and R is the correct EXPLANATION of A Both A and R are true but R is not a correct explanation of A A is true but R is false Both A and R are false. Solution :`IE_(1)` of GA is more than Al, and atomic size of Ga is less than Al. It is due to poor shielding of f-electrons.