Home Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Boron Family Thallium shows stable +1 oxidation state bec…
Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Boron Family Single Correct MCQ
Published on: August 12, 2026

Thallium shows stable +1 oxidation state because :

A
it has higher nuclear charge
B
it shows inert pair effect
C
it has amphoteric character
D
it has higher reactivity

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Text Solution

Verified by Experts
The correct answer is:
B

Down the group the lower oxidation state of element becomes more stable on account of inert pair effect. Hence the compounds of thallium with +1 oxidation states are stable as compared to +3 oxidation state (i.e.) group valency.

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