NEET Chemistry Covalent Bond MCQ Question
Which of the following statements about covalent bonds and molecular orbitals is correct?
Sigma bonds are formed by head-on overlap of atomic orbitals, while bonding molecular orbitals are lower in energy than their corresponding antibonding orbitals.
Pi bonds are stronger than sigma bonds due to greater overlap of atomic orbitals.
Molecular orbitals are monocentric and form only one type of molecular orbital when two atomic orbitals combine.
All covalent bonds in molecules are formed through the overlapping of d-orbitals exclusively.
Correct Answer
Detailed Explanation
Sigma bonds are indeed formed by head-on overlap of atomic orbitals, and bonding molecular orbitals have lower energy and greater stability compared to antibonding orbitals, as stated in the NCERT context.
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