Engineering
Chemistry
Inert Pair Effect
The Nitrogen Family and Properties
Question
Why Bi3+ more stable than Bi+5 ?
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Solution
Bi3+ is more stable than BI5+ due to inert pair effect. Ongoing down the group, inert pair effect increases due to more penetration of s – orbital in nucleus due to which element tends to show lower oxidation state more stable than higher oxidation state. Thus, bismuth will show a strong tendency to change into + 3 state from + 5 state.
Option (A) is correct.