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CGP EDU Academic Team
Published on: August 12, 2026
The ion that act as an oxidising agent in solution is :
Text Solution
Verified by ExpertsThe correct answer is:
C
Down the group, due to poor shielding, effective nuclear charge holds ns electrons tightly (responsible for inert pair effect) and thereby restricting their participation in bonding. As a result of this, only p-orbital electron may be involved in bonding. The relative stability of + 1 oxidation state progressively increases for heavier elements : Al < Ga < In < Tl. In thallium, +1 oxidation state is predominant and + 3 oxidation state is highly oxidising in character.
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