Assertion ( A ) : Among alkaline earths, Be has only covalent halides Reason ( R ) : Be has highest electro negativity among II A group elements

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Both A and R are correct. R is the correct explanation of A

Both A and R are correct. R is not the correct explanation of A.

A is true, but R is false

A is false, but R is true

answer is B.

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Detailed Solution

beryllium has small size therefore according to fajans rule, Be forms covalent compounds

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