AX is a covalent diatomic molecule where A and X are second row elements of periodic table. Based on

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4.Chemical Bonding and Molecular Structure

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$AX$ is a covalent diatomic molecule where $A$ and $X$ are second row elements of periodic table. Based on Molecular orbital theory, the bond order of $AX$ is $2.5$. The total number of electrons in $AX$ is ........... (Round off to the Nearest Integer).

A

$30$

B

$25$

C

$20$

D

$15$

(JEE MAIN-2021)

Solution

$AX$ is a covalent diatomic molecule.

The molecule is $NO$.

Total no. of electrons is $15$.

Standard 11

Chemistry

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(IIT-2015)