1.

Assertion (A) : Dinegative anion of oxygen (O^(2-)) is quite common but di-negative anion of sulphur S^(2-) is less common. Reason (R) :Covalency of oxygen is two.

Answer»

Both A and R true and R is the CORRECT explanation of A
Both A and R true and R is not acorrect explanation of A
A is true but R is FALSE
A is false but R is true

Solution :REASON. Electron AFFINITY of O is more than S.


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