If Hund rule violate, then find the total number of species among following which whill be dimagnetic:
`B_(2), O_(2), N_(2)^(-), C_(2), NO, OF, N_(2)^(2-), BN`

The number of paramagentic species among the following is O_(2), CO, N_(2), C_(2), CsO_(2), BaO_(2), CO_(2)

The number of paramagentic species among the following is O_(2), CO, N_(2), C_(2), CsO_(2), BaO_(2), CO_(2)

Consider the following species and find the total number of species which have fractional bond order : O_(2)^(+) , CO,B_(2) , O_(2)^(-) , NO^(+) , He_(2)^(+) , C_(2)^(2+) , CN^(-) , N_(2)^(-)

Which among the following are having diamagnetic property ? (i) B_(2) (ii) N_(2) (iii) O_(2) (iv) C_(2)

How many of the following species are paramagnetic? N_(2)^(+), O_(2)^(-), B_(2), C_(2), CN^(-), NO^(+), CO, H_(2)^(-), He_(2)^(+)

Find the total number of species where octet rule is not applicable. BrF_(5),SF_(6),IF_(7),CO,BeCl_(2),BF_(3),N_(2)O