Question

Which of the following is correct for the 'Law of Conservation of Mass'?

• A. Mass can either be created or destroyed in a chemical reaction.
• B. Mass can neither be created nor destroyed.
• C. The elements are always present in a constant proportion in a chemical substance.
• D. The rate of reaction is directly proportional to the active mass of the reactants.

Answer 1

The correct option is B Mass can neither be created nor destroyed.

According to the 'Law of conservation of mass', mass is neither created nor destroyed in a chemical reaction.