Question

in chemical reactions, what is the definition of a limiting reagent?
a) the reactant that is in excess and will not be used up in the reaction.
b) the product that is formed in the reaction.
c) the catalyst which speeds up the reaction but is not consumed in the reaction.
d) the reactant that is completely consumed in the reaction.

Explanation:

A limiting reagent in a chemical reaction is the reactant that gets completely used up first, thus limiting the amount of product that can be formed. Options a, b, and c are incorrect as they do not match the definition. Option a describes an excess reactant, option b is about a product, and option c is about a catalyst.

Answer:

D. The reactant that is completely consumed in the reaction.