The number and type of bonds in

Question:

The number and type of bonds in $\mathrm{C}_{2}^{2-}$ ion in $\mathrm{CaC}_{2}$ are :

  1. Two $\sigma$ bonds and one $\pi$ - bond

  2. Two $\sigma$ bonds and two $\pi$ - bonds

  3. One $\sigma$ bond and two $\pi$ - bonds

  4. One $\sigma$ bond and one $\pi-$ bond


Correct Option: , 3

Solution:

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