Question

Paramagnetism of oxygen is explained on the basis of which of the following electronic configuration ?

• A. $\left(2{\pi }^{\ast }py{)}^1\right(2{\pi }^{\ast }pz{)}^1$
• B. $\left(2{\pi }^{\ast }px{)}^1\right(2{\pi }^{\ast }py{)}^1$
• C. $\left(2\sigma px{)}^1\right(2\pi py{)}^1$
• D. $\left(2\sigma py{)}^1\right(2\pi py{)}^1$

Answer 1

Answer: (B)

$\left(2{\pi }^{\ast }px{)}^1\right(2{\pi }^{\ast }py{)}^1$

Electronic configuration is $\left(2\pi px{)}^1\right(2\pi pz{)}^1$, both is $2\pi px$ and is $2\pi py$ take 1 electron.