Chemistry-Inorganic Chemistry

NEET Chemistry Oxidation States MCQ Question

Type: MCQ-Medium-Class 12

The stability of +1 oxidation state increases in the sequence:

A

Tl < In < Ga < Al

B

In < Tl < Ga < Al

C

Ga < In < Al < Tl

D

Al < Ga < In < Tl

Correct Answer

Option D

Detailed Explanation

The order is due to the 'inert pair effect', which makes the +1 oxidation state more stable as we move down the group.

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