Question

Statement 1: In a chemical reaction, the mass of the reactants is equal to the mass of the products.
Statement 2: Chemical reactions involve only the rearrangement of atoms.

• A. Both statements 1 and 2 are false
• B. Statement 1 is false and statement 2 is true
• C. Both statements 1 and 2 are true
• D. Statement 1 is true and statement 2 is false

Answer 1

The correct option is C Both statements 1 and 2 are true

According to the law of conservation of mass, mass can neither be created nor be destroyed in a chemical reaction.
This means that in a chemical reaction, the total mass of the reactants is equal to the total mass of the products.
Thus, atoms cannot be formed or destroyed during a chemical reaction, only the rearragngement of atoms takes place.

Thus, both statements 1 and 2 are true.