Question:
The reactant that is completely consumed first in a chemical reaction is called:
The reactant that is completely consumed first in a chemical reaction is called:
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Shortcut: The reactant that runs out first controls product yield.
Updated On: Jun 9, 2026
- Excess reactant
- Catalyst
- Limiting reactant
- Inert reactant
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The Correct Option is C
Solution and Explanation
Concept:
The limiting reactant is the substance that gets fully consumed first and determines the maximum amount of product formed.
Step 1:
In many reactions, reactants are not supplied in exact stoichiometric ratio.
Step 2:
The reactant that finishes first stops the reaction because no more product can form.
Step 3:
It limits the amount of final product obtained.
Step 4:
Excess reactant remains unused, catalyst speeds reaction, inert reactant does not participate.
Step 5:
Hence, the completely consumed first reactant is the limiting reactant.
The limiting reactant is the substance that gets fully consumed first and determines the maximum amount of product formed.
Step 1:
In many reactions, reactants are not supplied in exact stoichiometric ratio.
Step 2:
The reactant that finishes first stops the reaction because no more product can form.
Step 3:
It limits the amount of final product obtained.
Step 4:
Excess reactant remains unused, catalyst speeds reaction, inert reactant does not participate.
Step 5:
Hence, the completely consumed first reactant is the limiting reactant.
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