A student said that electrolysis of water is a combination reaction. Why is this statement incorrect?
Answer and explanation
Correct answer: Because one compound breaks down into two simpler substances
In electrolysis, water, which is a compound, breaks down using electrical energy into hydrogen and oxygen: \(2H_2O(l) \rightarrow 2H_2(g) + O_2(g)\). Therefore, it is a decomposition reaction. In a combination reaction, two or more substances combine to form one product, whereas here one substance forms two products.
Frequently asked questions
What is the correct answer to this question?
Because one compound breaks down into two simpler substances
Why is this the correct answer?
In electrolysis, water, which is a compound, breaks down using electrical energy into hydrogen and oxygen: \(2H_2O(l) \rightarrow 2H_2(g) + O_2(g)\). Therefore, it is a decomposition reaction. In a combination reaction, two or more substances combine to form one product, whereas here one substance forms two products.
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.
