The reducing character of Al, Ga, In, Tl increases in which of the following order?
A
Al<Tl<Ga>In
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B
Ga<Al<Tl<In
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C
Tl<In<Ga<Al
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D
Al<Ga<In<Tl
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Solution
The correct option is BTl<In<Ga<Al Down the group, the reducing character decreases as electrode potential increases going down the group so reducing tendency decreases. Hence, the order is Tl < In < Ga < Al.