NEET Chemistry Molecular Orbital Theory Assertion Reason Question
Assertion (A): In ethyne, the C–C bond consists of one sigma bond and two pi bonds. | Reason (R): In sp hybridisation, each carbon atom in ethyne has two unhybridised p orbitals that overlap to form pi bonds.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false.
Correct Answer
Detailed Explanation
In ethyne, sp hybridisation occurs, and each carbon atom has two unhybridised p orbitals. These p orbitals overlap sidewise to form two pi bonds, while one sigma bond is formed by the axial overlap of sp hybrid orbitals.
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