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What Do You Understand By Inert Pair Effect - CBSE (Science) Class 11 - Chemistry

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What do you understand by inert pair effect 

Solution 1

Inert pair effect

As one moves down the group, the tendency of s-block electrons to participate in chemical bonding decreases. This effect is known as inert pair effect. In case of group 13 elements, the electronic configuration is ns2 npand their group valency is +3. However, on moving down the group, the +1 oxidation state becomes more stable. This happens because of the poor shielding of the ns2 electrons by the d- and f- electrons. As a result of the poor shielding, the ns2 electrons are held tightly by the nucleus and so, they cannot participate in chemical bonding.

Solution 2

Inert pair effect: The pair of electron in the valence shell does not take part in bond formation is called inert pair effect.

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 NCERT Solution for Chemistry Textbook for Class 11 (2018 to Current)
Chapter 11: The p-Block Elements
Q: 29.1 | Page no. 325
Solution What Do You Understand By Inert Pair Effect Concept: Group 13 Elements - The Boron Family.
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