Assertion : One mole of `SO_(2)` contain the same number of molecules present in one mole of `O_(2)`
Reason : Molecular mass of `SO_(2)` is twice that of `O_(2)`

Options

A. If both (A) and ( R ) are correct and ( R ) is the correct explanation of (A).
B. If both (A) and (R ) are correct, but ( R ) is not the correct explanation of (A).
C. If (A) is correct, but ( R) is incorrect.
D. If both (A) and (R ) are incorrect.

Answer

B

Explanation

One mole of any substance corresponds to `6.02xx10^(23)` entitites irrespective of its weight.
Molar mass of `SO_(2)=32+2xx16=64 g""mol^(-1)`, Molar mass of `O_(2)=2xx16=32 g""mol^(-1)`
Therefore, molar mass of `SO_2` is double to that of `O_2`.