Chemistry · 2014
JEE Main · 9 April 2014, Shift 1 · Q48
The number and type of bonds in C_2^2- ion in CaC_2 are:
The number and type of bonds in $\displaystyle \mathrm{C}_2^{2-}$ ion in $\displaystyle \mathrm{CaC}_2$ are :
Official answer
(2)
One $\displaystyle \sigma$ bond and two $\displaystyle \pi$ - bonds
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