Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Which of the following statements best explains the law of conservation of mass?
A
100 g of water is heated to give steam.
B
A sample of 
gas is heated at constant pressure without any change in mass.
gas is heated at constant pressure without any change in mass.
C
36 g of carbon combines with 32 g of oxygen to form 68 g of 
.
.
D
10 g of carbon is heated in vacuum without any change in mass.
Text Solution
Verified by ExpertsThe correct answer is:
C
According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
Among the given option only option 
involves a chemical change/reaction as:
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