Which of the following is a chemical change?
Answer and explanation
Correct answer: D. Burning of wood
- Step 1: Burning forms new substances. Answer: Burning of wood. Why not the others: Melting of ice, Boiling of water and Cutting of paper don't fit.
Practise more Science and technology for secondary students.
Free questions with an explanation for every one, and full timed ENLA Secondary Practice (Peru) mock tests.