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The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitalsA. have the same energy  B. have the minimum overlap  C. have same symmetry about the molecular axis  D. have different symmetry about the molecular axisChoose the most appropriate from the options given below:JEE Main 2024 (31 Jan Shift 1)AA, B, C onlyBA and C onlyCB, C, D onlyDB and D only

Question

The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitalsA. have the same energy  B. have the minimum overlap  C. have same symmetry about the molecular axis  D. have different symmetry about the molecular axisChoose the most appropriate from the options given below:JEE Main 2024 (31 Jan Shift 1)AA, B, C onlyBA and C onlyCB, C, D onlyDB and D only

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Solution

The correct answer is B. A and C only.

The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals have the same energy and have the same symmetry about the molecular axis. The overlap of the orbitals does not need to be minimal, and the orbitals do not need to have different symmetry about the molecular axis. Therefore, options B and D are incorrect.

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