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

Assertion . Sodium reacts with oxygen to form Na_(2)O_(2) but potassiu

1.	Assertion . Sodium reacts with oxygen to form Na_(2)O_(2) but potassium reacts with oxygen to form KO_(2) Reason. Potassium is more reactive than sodium .
Answer» If both assertion and reason are TRUE, and reason is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assertion. If assertion is true, but reason is false If both assertion and reason are false. 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)^(-)` .