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Question

Among the alkaline earth metals, the element forming predominantly covalent compounds is:

A
Barium
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B
Beryllium
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C
Strontium
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D
Calcium
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Solution

The correct option is B Beryllium
Be2+ ion has smallest size among all. Hence, it has high polarising power. It can't be ionize easily. It will predominantly form covalent compounds.

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