Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

Which of the following statements about limiting reagents is true?
Options
A It is always present in excess
B It determines the theoretical yield
Correct Answer
C It can be identified after the reaction
D It increases reaction speed
Correct Answer

Option B is the correct answer.

Detailed Explanation

The limiting reagent is the reactant that is completely consumed first in a chemical reaction. It limits the amount of product that can be formed, thus determining the theoretical yield.

Hint

Think about which reactant 'runs out' first and stops the reaction from producing more product.

Question Info