MCQ
Which of the following statements is correct about the given reaction
$4F{e_{(s)}} + 3{O_{2(g)}} \to 2F{e_2}{O_{3(s)}}$
- ✓Total mass of iron and oxygen used in reaction $=$ total mass of ferric oxide in product; therefore, it follows law of conservation of mass.
- BTotal mass of reactants used in the reaction $=$ total mass of product; therefore, law of multiple proportions is followed
- CAmount of $Fe_2O_3$ can be increased by taking any one of the reactants (iron or oxygen) in excess.
- DAmount of $Fe_2O_3$ produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess