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An Intiative by Sri Chaitanya
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 Fe2O3 can be increased by taking anyone of the reactants (iron or oxygen) in excess
d
Amount of Fe2O3 produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess
answer is A.
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