What do you mean by limiting reagent . Give one example.

1.	What do you mean by limiting reagent . Give one example.
Answer» The agent which is completely consumed during chemical reaction.<br>The reactant that is entirely used up in a reaction is called as limiting reagent.3H2\xa0+ N2\xa0→ 2NH3In the reaction given above, 3 moles of Hydrogen gas are required to react with 1 mole of\xa0nitrogen gas\xa0to form 2 moles of ammonia. But what if, during the reaction, only 2 moles of hydrogen gas are available along with 1 mole of nitrogen.In that case, the entire quantity of nitrogen cannot be used (because the entirety of nitrogen requires 3 moles of hydrogen gas to react). Hence, the hydrogen gas is limiting the reaction and is therefore called the limiting reagent for this reaction.

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