Catalysts in Chemistry

Catalysts in Chemistry

Assessment

Interactive Video

Chemistry, Science

7th - 10th Grade

Medium

Created by

Amelia Wright

Used 2+ times

FREE Resource

This video explains catalysts, their function, and applications. Catalysts speed up chemical reactions without being consumed by providing an alternative pathway with lower activation energy. They are crucial in industrial processes like the Haber and Contact processes and are used in catalytic converters in vehicles to reduce toxic emissions.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a catalyst?

A substance that slows down a chemical reaction

A substance that speeds up a chemical reaction without being consumed

A substance that changes the color of a reaction

A substance that increases the mass of the reactants

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a catalyst affect the activation energy of a reaction?

It increases the activation energy

It has no effect on the activation energy

It decreases the activation energy

It doubles the activation energy

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do more fruitful collisions occur in the presence of a catalyst?

Because the pressure is increased

Because the volume is reduced

Because the activation energy is lower

Because the temperature is higher

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which type of reactions are catalysts commonly used in manufacturing?

Reversible reactions

Neutral reactions

Exothermic reactions

Endothermic reactions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of iron in the Haber process?

It acts as a solvent

It acts as a product

It acts as a catalyst

It acts as a reactant

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the catalyst used in the Contact process?

Platinum

Iron

Potassium oxide

Vanadium pentoxide

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a catalytic converter in vehicles?

To improve vehicle speed

To reduce engine noise

To convert toxic gases into harmless products

To increase fuel efficiency

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