Which of the following statements is correct about the reaction given below:-
`4Fe(s)+3O_(2)(g)rarr2Fe_(2)O_(3)(g)`

Options

A. Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product therefore, it 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 reducing the amount of any one of the reactants (iron or oxygen).
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

Explanation

Law of mass conservation states that matter can neither be created nor destroyed, or in a chemical reaction, the total mass of the reactants is equal to the total mass of the products.
`underset(underset(=224 g)(56 xx 4))(4Fe(s))+underset(underset(=96 g)(32 xx 3))(3O_(2) (g)) to underset(underset(=320 g)(2 xx 160))(2FeO_(3) (g))`