The bond order and the magnetic characteristics of CN- are:

Question

The bond order and the magnetic characteristics of CN- are: (A) 3, paramagnetic (B) 2 (1/2), diamagnetic (C) 3, diamagnetic (D) 2 (1/2), paramagnetic

Tardigrade Admin · Accepted Answer

CN - is a 14 electrons system similar to that of nitrogen molecules. As per the MOT concept, Nitrogen molecule is diamagnetic as all the electrons are paired and bond order is 3. B.O. =(1/2)[ N b - N a ]=(1/2)[8-2]=3 <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/b7076d18aa4ddb3cf8dee930e7678acd-.png" />

Q. The bond order and the magnetic characteristics of $C N^{-}$ are:

3, paramagnetic

$2 \frac{1}{2},$ diamagnetic

3, diamagnetic

$2 \frac{1}{2},$ paramagnetic

$C N^{-}$ is a 14 electrons system similar to that of nitrogen molecules. As per the MOT concept, Nitrogen molecule is diamagnetic as all the electrons are paired and bond order is 3.
$B . O . = \frac{1}{2} [N_{b} - N_{a}] = \frac{1}{2} [8 - 2] = 3$

Q. The bond order and the magnetic characteristics of CN− are:

3, paramagnetic

221​, diamagnetic

3, diamagnetic

221​, paramagnetic

CN− is a 14 electrons system similar to that of nitrogen molecules. As per the MOT concept, Nitrogen molecule is diamagnetic as all the electrons are paired and bond order is 3. B.O.=21​[Nb​−Na​]=21​[8−2]=3

Q. The bond order and the magnetic characteristics of $C N^{-}$ are:

$2 \frac{1}{2},$ diamagnetic

$2 \frac{1}{2},$ paramagnetic

$C N^{-}$ is a 14 electrons system similar to that of nitrogen molecules. As per the MOT concept, Nitrogen molecule is diamagnetic as all the electrons are paired and bond order is 3.
$B . O . = \frac{1}{2} [N_{b} - N_{a}] = \frac{1}{2} [8 - 2] = 3$