Chemical and physical changes - Jamb Chemistry Past Questions and Answers

Question 6:

• JAMB 2003

Which of the following is physical change?

A. Burning kerosene
B. Freezing ice cream
C. Exposing white phosphorus
D. Dissolving calcium in water

Question 7:

• JAMB 2006

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

A. Oxygen is consumed
B. Heat is supplied
C. A reversible process oocurs
D. A new substance is formed

Question 8:

• JAMB 2009

Which of the following is a physical change?

A. Freezing ice cream
B. Dissolving calcium in water
C. Burning kerosene
D. Exposing white phosphorus to air

Question 9:

• JAMB 2015

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

A. Oxygen is consumed
B. Heat is supplied
C. The reversible process occurs
D. A new substance is formed

Question 10:

• JAMB 2018

Which of the following is an example of a chemical change?

A. Dissolution of salt in water
B. Rusting of iron
C. Melting of ice
D. Separating a mixture by distillation