JAMB Chemistry 2006 Question 31

Question 31

Separation of Mixtures

A difference between chemical and physical change is that in a chemical change

  1. A.oxygen is consumed
  2. B.heat is supplied
  3. C.a reversible process occurs
  4. D.a new substance is formed
Show the answer and explanation

Answer: D (a new substance is formed)

Explanation

A chemical change always produces a new substance; a physical change only alters the state or form.