Which of the following statements is correct about the given reaction : `4Fe_(s)+3O_(2(g)) to 2Fe_2O_(3(g))`

Options

A. Total mass of iron and oxygen in reactants=total mass of iron and oxygen in product therefore if follows law of conservation of mass.
B. Total mass of reactants=total mass of product, therefore, law of multiple proportions is followed
C. Amount of `Fe_(2)O_(3)` can be increased by taking any one of the reactants (iron or oxygen( in excess.
D. Amount of `Fe_(2)O_(3)` produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess

Answer

A