Question

Which of the following is correct with respect to
bond length of the species ?
A. `C_(2) gt C_(2)^(2-)`
B. `B_(2)^(+) gt B_(2)`
C. `Li_(2)^(+) gt Li_(2)`
D. `O_(2) gt O_(2)^(-)`

Answer 1

Bond order : `C_(2) = 2 , C_(2)^(2-) = 3 , B_(2) = 1 , B_(2)^(+) = 0.5 ` ,
`Li_(2) = 1 , Li_(2)^(+) = 0.5 , N_(2)= 3 , N_(2)^(+) = 2.5 , O_(2) = 2 `
`O_(2)^(-) = 1.5` . Greater the bond order , shorter is the bond length