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Q.

The alkaline earth metal that forms mainly covalent compounds is

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a

Mg

b

Be

c

Ca

d

Ba

answer is B.

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Detailed Solution

"Be" in the 2nd group differed from the rest of the elements of the same group. This is said to be anomalous behaviour of "Be"Reasons:1) Due to its small size and high EN2) Its high polarising power[P.P]Because of its high polarising power it mainly forms covalent compoundsEg :- BeCl2
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