1.

Statement-1 . Sodium reacts with oxygen to form Na_(2)O_(2) but potassium reacts with oxygen to form KO_(2). Statement-2 . Potassium is more reactive than sodium .

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 . Due to BIGGER size of `K^(+)` than `Na^(+)`, it has a weak positive FIELD around it which cannot prevent peroxide ION `(O_(2)^(2-))` to combine with another oxygen atom to FORM superoxide , `O_(2)^(-)` .


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