alleryThe rising stability of the plus three state down group 15 is due to:
ATyndall effect
BInert pair effect
CLanthanoid effect
DScreening effect
Answer & Solution
Correct answer: B. Inert pair effect
1. The plus five state grows less stable down the group.
2. The plus three state grows more stable at the same time.
3. This is attributed to the inert pair effect.
_Source: syllabus Chemistry, Chapter 7, The p-Block Elements._
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