Question

Which of the following statements is correct about the reaction given below? $4 \mathrm{Fe}(\mathrm{s})+3 \mathrm{O}_2(\mathrm{~g}) \longrightarrow 2 \mathrm{Fe}_2 \mathrm{O}_3(\mathrm{~g})$

Accepted Answer

Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product therefore, it follows law of conservation of mass.

Answer

Total mass of reactants $=$ total mass of product; therefore, law of multiple proportions is followed.

Answer

Amount of $\mathrm{Fe}_2 \mathrm{O}_3$ can be increased by reducing the amount of any one of the reactants (iron or oxygen).

Answer

Amount of $\mathrm{Fe}_2 \mathrm{O}_3$ produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess.

JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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