Question

19. The number of non-bonding electrons present in the frontier molecular orbitals of HF is
(a) 10
(b) 4
(c) 6
(d) 8
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Answer 1

Answer:

b)4

Explanation:

hf is 4 molecular orbitals

Answer 2

The correct option is d.

• The molecular orbital diagram of HF has four non-bonding orbitals that is one from 1s, one from 2s and two from 2p orbitals.
• Each non-bonding orbital has two electrons. So, the total non-bonding electrons of HF is 4×2=8.
• Thus, the number of nonbonding electrons present in the frontier molecular orbitals of HF is 8.