Catalysts-Multiple Choice Questions Quiz

Interactive MCQs on “Catalysts”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is a catalyst?

(a) A substance that undergoes a chemical reaction
(b) A substance that speeds up a chemical reaction without being consumed
(c) A product formed in a chemical reaction
(d) A type of acid used in industrial processes

Question 2: Which of the following statements about catalysts is true?

(a) Catalysts are permanently altered in a reaction.
(b) Catalysts are used up during a reaction.
(c) Catalysts change the equilibrium position of a reaction.
(d) Catalysts do not affect reaction rates.

Question 3: What role do catalysts play in a chemical reaction mechanism?

(a) They increase the activation energy.
(b) They decrease the activation energy.
(c) They remain inactive.
(d) They produce more reactants.

Question 4: Which type of catalyst is in the same phase as the reactants and products?

(a) Heterogeneous catalyst
(b) Homogeneous catalyst
(c) Enzymatic catalyst
(d) Auto-catalyst

Question 5: What is the primary role of a catalyst in industrial processes?

(a) Increasing the cost of production
(b) Slowing down reactions
(c) Reducing the need for energy input
(d) Producing more waste products

Question 6: Which of the following is an example of an enzymatic catalyst?

(a) Platinum in catalytic converters
(b) Sulfuric acid in esterification reactions
(c) Amylase in digestion
(d) Iron in the Haber process

Question 7: What is an autocatalyst?

(a) A catalyst that works in the automotive industry
(b) A catalyst that speeds up its own reaction
(c) A type of heterogeneous catalyst
(d) A catalyst that requires no activation energy

Question 8: Which of the following is an example of a heterogeneous catalyst?

(a) Acid-catalyzed hydrolysis
(b) Enzymes in biological reactions
(c) Metal nanoparticles in catalytic converters
(d) Homogeneous catalysts in solution

Question 9: How does a catalyst affect the equilibrium position of a reversible reaction?

(a) It shifts the equilibrium to the left.
(b) It shifts the equilibrium to the right.
(c) It does not affect the equilibrium position.
(d) It eliminates the need for equilibrium.

Question 10: Which of the following statements is true about catalysts?

(a) Catalysts increase reaction rates by providing more reactants.
(b) Catalysts decrease the overall energy change in a reaction.
(c) Catalysts work only in specific types of reactions.
(d) Catalysts change the stoichiometry of a reaction.