Which one is the best example of law of conservation of mass ?

Chemistry · JEE Main · NTA Exams — Some Basic Concepts in Chemistry

1. 6 g of carbon is heated in vacuum, there is no change in mass
2. 6 g of carbon combines with 16 g of oxygen to form 22 g of CO₂
   
3. 6 g water is completely converted into steam
4. A sample of air is heated at constant pressure when its volume increases but there in no change in mass.

Answer

(B) 6 g of carbon combines with 16 g of oxygen to form 22 g of CO 2

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