Question

Ram carried out a chemical reaction in a test tube without the cork. Every chemical reaction follows the law of mass conservation.

• A. True
• B. False

Answer 1

The correct option is B

False

The statement is incorrect. The mass in a chemical reaction is constant in a closed system. However, if a chemical reaction is completed in an open system, mass changes may occur. It is important to remember that mass changes only occur because a gas is being released into the atmosphere, or because a gas from the atmosphere is being used as a reactant - no atoms are being created or destroyed, just rearranged.