Question
The number and type of bonds in ion in $$Ca{C_2}$$ 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
Answer :
One $$\sigma $$ bond and two $$\pi $$ - bond
Solution :
The structure of $$Ca{C_2}$$ is $$C{a^{2 + }}{\left[ {:C \equiv C:} \right]^{2 - }}$$
i.e, one $$\sigma $$ and two $$\pi $$ bonds