Assertion : C_2 contains two pi bonds.Reason | vedclass

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(D) According to Molecular Orbital Theory $(MOT)$,the electronic configuration of $C_2$ is $\sigma 1s^2, \sigma^* 1s^2, \sigma 2s^2, \sigma^* 2s^2, \p

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Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

Vedclass · Answer

(D) According to Molecular Orbital Theory $(MOT)$,the electronic configuration of $C_2$ is $\sigma 1s^2, \sigma^* 1s^2, \sigma 2s^2, \sigma^* 2s^2, \pi 2p_x^2 = \pi 2p_y^2$.Since all electrons are paired,$C_2$ is diamagnetic in nature.In $C_2$,the bond order is $\frac{8-4}{2} = 2$. Both bonds are $\pi$ bonds because the $\sigma 2p_z$ orbital is higher in energy than the $\pi 2p$ orbitals in $C_2$.Thus,both Assertion and Reason are true,and the Reason correctly explains the nature of the bonding in $C_2$.

Assertion : $C_2$ contains two $\pi$ bonds.
Reason : $C_2$ is diamagnetic in nature.

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Assertion : $C_2$ contains two $\pi$ bonds.Reason : $C_2$ is diamagnetic in nature.