Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The stability of +1 oxidation state increase in the sequence:
A
B
C
D
In 
Text Solution
Verified by ExpertsThe correct answer is:
B
As we move down the group from Al to Tl , inert pair effect becomes more and more pronounced. In other words, stability of +1 oxidation state increases down the group, i.e., 
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