Chemical Catalysts: Types and Key Characteristics Quiz

Question 1

A catalyst remains unchanged at the end of a chemical reaction and can be reused.

Accepted Answer

True

Answer

False

Question 2

Nickel is used as a catalyst in the Haber method of making ammonia gas.

Accepted Answer

False

Answer

True

Question 3

Positive catalysts increase the rate of chemical reactions.

Accepted Answer

True

Answer

False

Question 4

In heterogeneous catalysis, the reactant, catalyst, and product are present in different physical states.

Accepted Answer

True

Answer

False

Question 5

A single catalyst can work for all chemical reactions.

Accepted Answer

False

Answer

True

Question 6

A catalyst catalyzes both forward and reverse reactions equally in reversible reactions.

Accepted Answer

True

Answer

False

Question 7

Platinum powder is used as a catalyst in the contact method of making sulfuric acid.

Accepted Answer

True

Answer

False

Question 8

In a physical change, a new substance is formed that is completely different from the original substance.

Accepted Answer

False

Answer

True

Question 9

Hot alumina is used as a catalyst in the process of making ether from alcohol.

Accepted Answer

True

Answer

False

Question 10

Wilhelm Ostwald believed that a catalyst cannot initiate a new reaction.

Accepted Answer

True

Answer

False

Chemical Catalysts: Types and Key Characteristics