The number and type of bonds in $C_2^{2 - }$ ion in $CaC_2$ are
One $\sigma $ bond and one $\pi - $ bond
One $\sigma $ bond and two $\pi - $ bond
Two $\sigma $ bond and two $\pi - $ bond
Two $\sigma $ bond and one $\pi - $ bond
According to the molecular orbital theory, the bond order in ${C_2}$ molecule is
Incorrect statement when $C_2$ change to $C_2^{-2}$
Among the following species$N _{2}, N _{2}^{+}, N _{2}^{-}, N _{2}{ }^{2-}, O _{2}, O _{2}{ }^{+}, O _{2}^{-}, O _{2}{ }^{2-}$ the number of species showing diamagnetism is.
${N_2}$ and ${O_2}$ are converted into monocations $N_2^ + $ and $O_2^ + $ respectively. Which is wrong
Which molecule has the highest bond order