Practice Industrial Preparation of Hydrogen - 6 | Chapter 7: Hydrogen | ICSE Class 8 Chemistry
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is produced when steam passes over red-hot coke?

πŸ’‘ Hint: Think about the reaction involving water and carbon.

Question 2

Easy

What does electrolysis of water produce?

πŸ’‘ Hint: Consider the breakdown of water molecules.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main reaction for producing water gas?

  • C + H2O β†’ CO + H2
  • 2H2O β†’ 2H2 + O2
  • H2 + O2 β†’ H2O

πŸ’‘ Hint: Think about the reaction involving coke and steam.

Question 2

Electrolysis is a method that requires what type of energy?

  • True
  • False

πŸ’‘ Hint: Consider how electricity influences chemical reactions.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If 100 grams of coke are used with sufficient water, calculate the maximum amount of hydrogen gas that could be produced.

πŸ’‘ Hint: Keep in mind the molar masses and the stoichiometry from the reaction.

Question 2

Considering the cost of electricity for electrolysis is $0.20 per kWh, calculate the cost of producing hydrogen from 2 moles of water over a typical 2-hour electrolysis.

πŸ’‘ Hint: Estimate energy requirements and use your cost knowledge.

Challenge and get performance evaluation