Limiting Reagent

The reactant which reacts completely in the reaction is called limiting reactant or limiting reagent.

The reactant which is not consumed completely in the reaction is called excess reactant .

Limiting reagent

Question : 3 g of H2 react with 29 g of O2 to form H20.Which is the limiting reagent ?

Answer :

Limiting reagent

Thus O2 is present in excess.Hence H2 is the limiting reagent.

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