What is the reaction called in which a compound breaks down into two or more simpler substances?
Answer and explanation
Correct answer: Decomposition reaction
The governing concept is decomposition: one compound is split into two or more simpler substances. Its general pattern is AB → A + B, and the change may be caused by heat, light, or electricity. Therefore option C is correct. Combination shows the opposite pattern, double displacement exchanges ions between compounds, and combustion is a reaction with oxygen that commonly releases heat and light.
Frequently asked questions
What is the correct answer to this question?
Decomposition reaction
Why is this the correct answer?
The governing concept is decomposition: one compound is split into two or more simpler substances. Its general pattern is AB → A + B, and the change may be caused by heat, light, or electricity. Therefore option C is correct. Combination shows the opposite pattern, double displacement exchanges ions between compounds, and combustion is a reaction with oxygen that commonly releases heat and light.
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.
