According to the law of conservation of mass, what happens to the total mass during a chemical reaction in a closed system?
Answer and explanation
Correct answer: कुल द्रव्यमान समान रहता है
According to the law of conservation of mass, matter is neither created nor destroyed in a chemical reaction. Therefore, in a closed system, the total mass of the reactants equals the total mass of the products. Option B is incorrect because the actual mass does not decrease; in an open container, the measured mass may appear lower if a gas escapes.
Frequently asked questions
What is the correct answer to this question?
कुल द्रव्यमान समान रहता है
Why is this the correct answer?
According to the law of conservation of mass, matter is neither created nor destroyed in a chemical reaction. Therefore, in a closed system, the total mass of the reactants equals the total mass of the products. Option B is incorrect because the actual mass does not decrease; in an open container, the measured mass may appear lower if a gas escapes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
