Question

in nitrogen molecule the number of electron pairs which is not take part in the covalent bond formation

1. 3
2. 2
3. 4
4. 6​

Answer 1

Answer:

The total number of electrons that take part in forming bonds in nitrogen molecule are 6. There are 3 bonds (one sigma and two pi bonds) present in nitrogen molecule. A bond is formed by sharing of two electrons. Hence, for 3 bonds, we require 6 electrons.

The correct answer to this question is option 4.

Answer 2

In nitrogen molecule the number of electron pairs which is not a part of a covalent bond is 4.

• In a nitrogen molecule, an alkyne bond (3 hydrogen bonds) is present that means each nitrogen atom in the molecule share 3 electrons.
• As a result, 3 covalent bonds (one sigma and two pie bonds) are responsible for the formation of nitrogen molecules.
• As there are eight electrons in each nitrogen molecule. The nitrogen atom has 7 electrons and one electron, it accept to become stable.
• Now, six electrons are shared between 2 nitrogen atoms I.e total of 3 electron pairs are involved in covalent bonding.
• In total 8 electrons are not involved in the covalent bonding which means that 4 electron pairs do not take part in the formation of the covalent bonding of nitrogen molecules.

Hence, the correct option is 3rd option.