Assuming that Hund's rule is violated,the bon | vedclass

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(A) The electronic configuration of $B_2$ ($10$ electrons) is $\sigma_{1s}^2 \sigma_{1s}^{*2} \sigma_{2s}^2 \sigma_{2s}^{*2} \pi_{2p_x}^2$.Bond order

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$1$ and diamagnetic

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(A) The electronic configuration of $B_2$ ($10$ electrons) is $\sigma_{1s}^2 \sigma_{1s}^{*2} \sigma_{2s}^2 \sigma_{2s}^{*2} \pi_{2p_x}^2$.Bond order is calculated as $\frac{	ext{Number of bonding electrons} - 	ext{Number of antibonding electrons}}{2}$.Bond order = $\frac{6 - 4}{2} = 1$.Since all electrons are paired in the $\pi_{2p_x}$ orbital under the assumption that Hund's rule is violated,the molecule is diamagnetic.

List-$I$	List-$II$
$A. Li_2$	$i. 3$
$B. N_2$	$ii. 1.5$
$C. Be_2$	$iii. 1.0$
$D. O_2$	$iv. 0$
	$v. 2$

Assuming that Hund's rule is violated,the bond order and magnetic nature of the diatomic molecule $B_2$ is

Similar Questions

Which of the following statements is correct?

In which of the following ionization processes,the bond order has increased and the magnetic behaviour has changed?

The total number of electrons in all bonding molecular orbitals of $O_{2}^{2-}$ is $....$ (Round off to the Nearest Integer).

Match the molecules in List-$I$ with their respective bond orders in List-$II$.
List-$I$ List-$II$
$A. Li_2$ $i. 3$
$B. N_2$ $ii. 1.5$
$C. Be_2$ $iii. 1.0$
$D. O_2$ $iv. 0$
$v. 2$

Which of the following species contains only $\pi$-bonds but exhibits paramagnetic nature?

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