Question

Assertion: (A): First ionization energy of
beryllium is greater than that of boron.
Reason (R): Boron has larger size than
beryllium.​

Answer 1

Answer:

Assertion is right

Reason is wrong

the reason should be that the electronic configuration of Beryllium is stable and is 1s2, 2s2.

Hence Be requires more energy to remove electron than B (1s2, 2s2, 2p1)

Hope this helps