Question

Assertion(A): The balancing of chemical equations is based on the law of conservation of mass.
Reason(R): Total mass of reactants is equal to the total mass of products.

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true and R is the not the correct explanation of A.
• C. A is true but R is false.
• D. A is false but R is true.

Answer 1

The correct option is A Both A and R are true and R is the correct explanation of A.

The Law of conservation of mass states that mass can be neither created nor destroyed in a chemical reaction. The total mass of reactants is equal to the total mass of products. Thus, both Assertion and Reason are correct, and Reason is the correct explanation for Assertion.