Multiple choice

Assertion (A) Fr burns in air forming FrO2-Reason (R) The larger alkali metal ions stabilise FrO2-(superoxide).

  1. Both (A) and (R) are true and (R) is the correct explanation of (A).

  2. Both (A) and (R) are true but (R) is not the correct explanation of (A).

  3. (A) is true but (R) is false.

  4. (A) is false but (R) is true.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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