Question

Which of the following will result in Anti-bonding Molecular Orbitals?

• A. a, b
• B. b, c
• C. c, d
• D. d, a

Answer 1

The correct option is C

c, d

Bonding molecular orbitals are formed when the lobes of the combining orbitals have the same sign.

$\Rightarrow$ Anit-Bonding molecular orbitals are formed when the lobes of the combining orbitals have different sign.

Therefore, option (c) and (d) will result in Anti-bonding Molecular orbitals.