

InterviewSolution
Saved Bookmarks
1. |
Which of the following species is not paramagnetic ?A. `O_(2)`B. `B_(2)`C. `NO`D. `CO` |
Answer» Correct Answer - D `O_(2) = 16` electrons . M.O. configuration is ` KK sigma (2s)^(2) sigma^(**)(2s)^(2)sigma (2p_(z))^(2) pi (2p_(x))^(2) pi(2p_(y))^(2)` `pi^(**) (2p_(x))^(1) pi^(**) (2p_(y))^(1) ` (paramagnetic) `B_(2) = 10 ` electrons. M. O. configuration is `KK sigma (2s)^(2) sigma^(**)(2s)^(2) pi (2p_(x))^(1) pi(2p_(y))^(1)` (paramagnetic) NO = 15 electrons .M.O. configuration is `KK sigma (2s)^(2) sigma^(**)(2s)^(2) sigma (2p_(z))^(2) pi (2p_(x))^(2) pi (2p_(y))^(2)` `pi^(**)(2p_(x))^(1) ` CO = 14 electrons . M.O. configuration is `KK sigma (2s)^(2) pi(2p_(x))^(2)pi(2p_(y))^(2) sigma (2p_(z))^(2) sigma ^(**) (2s)^(2)` (diamagnetic) |
|