Arrange the elements in order of their reactivity?
B, Al, Ga, In

B < Al < Ga < In

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In < Ga < Al < B

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Ga < In < Al < B

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None of the above

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Solution

The correct option is A B < Al < Ga < In
On going down the group, the reactivity of elements increases.

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Question 17
Arrange the following elements in the order of their decreasing metallic character
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Arrange the elements in order of their reactivity?B, Al, Ga, In

The correct option is A B < Al < Ga < InOn going down the group, the reactivity of elements increases.

Arrange the elements in order of their reactivity?
B, Al, Ga, In

The correct option is A B < Al < Ga < In
On going down the group, the reactivity of elements increases.