1.

Statement-1. Under identical conditions, 1 L of O_(2) gas an 1 L of O_(3) gas contain the same number of oxygen atoms. Statement-2. 1 L of O_(2) and 1 L of O_(3) contain the same number of moles under identical conditions.

Answer»

Statement-1 is TRUE, Statement-2 is True , Statement-2 is the 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 :1 L of `O_(2)` and 1 L `O_(3)` contain the same number of moles and hence same number molecules but not ATOMS. No. of atoms in `O_(3)` will be 1.5 TIMES than that in `O_(2)`. Hence, statement-1 is false and statement-2 is true.


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