1.

Statement -1 : Salts of ClO_(3)^(-) and ClO_(4)^(-) are well known but those of FO_(3)^(-) and FO_(4)^(-) are unknown. Satement - 2 : F is more electronegative than O while Cl is less electronegative than O.

Answer»

Statement-1 is True, Statement-2 is True , Statement-2 is a correct explanation for Statement-1.
Statement-1 is True, Statement-2 is True , Statement-2 is not a correct explanation for Statement-1
Statement-1 is True, Statement-2 is FALSE.
Statement-1 is False, Statement-2 is True.

SOLUTION :Correct explanation. F cannot show positive oxidation states of +5 and +7 and hence `FO_(3)^(-) and FO_(4)^(-)` are unknown.


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