GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The substance completely used up in a reaction
A
Limiting Reagent (or Limiting Reactant)
B
Excess Reagent (or Excess Reactant)
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The limiting reagent is the reactant that is completely used up in a reaction, and thus determines when the reaction stops.

Detailed explanation-2: -The limiting reagent in a chemical reaction is the reactant that will be consumed completely. Once there is no more of that reactant, the reaction cannot proceed. Therefor it limits the reaction from continuing.

Detailed explanation-3: -A reaction finishes when one of the reactants is all used up. The other reactant has nothing left to react with, so some of it is left over: the reactant that is all used up is called the limiting reactant-it sets a limit on how much product can form.

Detailed explanation-4: -The reagent that is completely used up or reacted is called the limiting reagent, because its quantity limits the amount of products formed.

Detailed explanation-5: -The limiting reagent (or limiting reactant or limiting agent) in a chemical reaction is a reactant that is totally consumed when the chemical reaction is completed. The amount of product formed is limited by this reagent, since the reaction cannot continue without it.

There is 1 question to complete.