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Question

Chemistry Question on Chemical bonding and molecular structure

According to MOT,C2 C_2 molecule has

A

onesandoneπbond.one\, s and\, one\, \pi-bond.

B

only two πbonds.\pi-bonds.

C

only two sbonds.s-bonds.

D

onesandtwoπbonds.one\, s\, and\, two\, \pi\, bonds.

Answer

only two πbonds.\pi-bonds.

Explanation

Solution

C2(12)=s1s2,s1s2,s2s2,s2s2,π2px2π2py2C_2(12)=s 1s^2, s^* 1s^2, s2s^2, s^* 2s^2, \pi 2p^2_x \approx\pi 2p^2_y C2C_2 has two pairs of electrons in π2pxandπ2py\pi2p_x\, and\, \pi2p_y therefore, it has only two π\pi-bonds.