Number and type of bonds in C₂^{2 - } ion in CaC₂ are

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4.Chemical Bonding and Molecular Structure

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The number and type of bonds in $C_2^{2 - }$ ion in $CaC_2$ are

A

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

B

One $\sigma $ bond and two $\pi - $ bond

C

Two $\sigma $ bond and two $\pi - $ bond

D

Two $\sigma $ bond and one $\pi - $ bond

(JEE MAIN-2014)

Solution

The structure of $CaC_2$ is $Ca^{2+}$ $[: C \equiv C :]^{2-}$ i.e, one $\sigma $ and two $\pi $ bonds

Standard 11

Chemistry

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