Q.
Statement I Boron has a smaller first ionisation enthalpy than beryllium.Statement Il 2p-electron of boron is more shielded from the nucleus by the inner core of electrons.
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I.
b
Both Statement I and Statement II are correct but Statement II is not correct explanation of Statement I
c
Statement I is correct but Statement II is incorrect
d
Statement I is incorrect but Statement II is correct.
answer is A.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
Boron has a smaller first ionisation enthalpy than beryllium because the 2p-electron of boron is more shielded from the nucleus by the inner core of electrons than the 2s-electrons of beryllium.
Watch 3-min video & get full concept clarity