Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is heated in a vacuum there is no change in mass. (C) A sample of air increases in volume when heated at constant pressure but its mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.

Which of the following is the best example of
law of conservation of mass? [NCERT 1975]
 (A) 12 g of carbon combines with 32 g of
oxygen to form 44 g of CO2.
 (B) When 12 g of carbon is heated in a
vacuum there is no change in mass.
 (C) A sample of air increases in volume
when heated at constant pressure but its
mass remains unaltered.
 (D) The weight of a piece of platinum is the
same before and after heating in air.
by

1 Answer

Answer :

(A) 12 g of carbon combines with 32 g of
oxygen to form 44 g of CO2.
by

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