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Which of the following is true regarding reducing character?

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in Chemistry – Class 11 by (148k points)
Which of the following is true regarding reducing character?

(a) Gallium < aluminium > indium > thallium

(b) Aluminium > gallium > indium > thallium

(c) Aluminium > gallium < indium > thallium

(d) Gallium > aluminium > indium > thallium

This question was addressed to me during an online exam.

Enquiry is from p-Block Elements topic in division p-Block Elements of Chemistry – Class 11

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Correct choice is (b) Aluminium > gallium > indium > thallium

The explanation: Reducing character of the boron family decreases down the group from aluminium to thallium because of the increase in electrode potential value for M^3+/M, therefore, the correct order is given as aluminium > gallium > indium > thallium.

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