Assertion : Empirical and molecular formulae of `NaHCO_(3)` are the same
Reason : Upon heating, `NaHCO_(3)` evolves `CO_(2)` gas.
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
