KVPY 2020-21 SB SX Exam Previous Papers

Question : 55 of 120

Marks: +1, -0

If an extra electron is added to the hypothetical molecule

C_2

, this extra electron will occupy the molecular orbital :-

Solution:

Configuration of

C_2

\σ_{18}^{2} \σ_{18}^{* 2} \σ_{2 s}^{2} \σ_{2 s}^{* 2} \π_{2 p x}^{2}=\π_{2 p y}^{2} \σ_{2 p z}

an extra electron added to the

\σ_{2 p}

of the above configuration.

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