What is the main difference between electrolytic decomposition and thermal decomposition?
Answer and explanation
Correct answer: Electrical energy is used in one and heat energy in the other
Decomposition means breaking one compound into simpler substances, and it requires an energy input. In electrolytic decomposition, electrical energy supplied through an electric current causes the compound to split, as in electrolysis of water. In thermal decomposition, heat energy causes the splitting, as when calcium carbonate is heated. Thus option A correctly identifies the difference; the other choices describe neither process accurately.
Frequently asked questions
What is the correct answer to this question?
Electrical energy is used in one and heat energy in the other
Why is this the correct answer?
Decomposition means breaking one compound into simpler substances, and it requires an energy input. In electrolytic decomposition, electrical energy supplied through an electric current causes the compound to split, as in electrolysis of water. In thermal decomposition, heat energy causes the splitting, as when calcium carbonate is heated. Thus option A correctly identifies the difference; the other choices describe neither process accurately.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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