- 1. Which of the following is NOT TRUE about Physical change?
A) There is no change in chemical properties
B) Changes are reversible
C) No new substance is formed
D) A new substance is formed
- 2. Which of the following is NOT TRUE about Chemical change?
A) A new substance is formed
B) No new substance is formed
C) The chemical properties change
D) Changes are irreversible
- 3. All the following are physical change except ______
A) dissolving sugar in water
B) burning of wood
C) changing the shape of a metal
D) melting of ice
- 4. What is the atomic number of Sodium? Type your answer.
- 5. What is the atomic number of Chlorine? Type your answer.
- 6. What is the atomic number of Aluminium? Type your answer.
- 7. What is the atomic number of Oxygen? Type your answer.
- 8. Which of the following is the electronic configuration of Potassium?
A) 2,8,8,2
B) 2,8,2
C) 2,8,8,1
D) 2,8,1
- 9. Which of the following is the electronic configuration of Carbon?
A) 2,5
B) 2,4
C) 2,6
D) 2,8
- 10. What is the oxidation number of Nitrogen (N) in HNO3?
A) 7
B) 4
C) 6
D) 5
- 11. Group 1 elements are also called ________
A) Noble gases
B) Halogens
C) Alkaline earth metals
D) Alkali metals
- 12. Group 2 elements are also called _____
A) Alkaline earth metals
B) Noble gases
C) Alkali metals
D) Halogens
- 13. Group 7 elements are also called ______
A) Alkali metals
B) Noble gases
C) Halogens
D) Alkaline earth metals
- 14. Group 0 elements are also called ________
A) Alkali metals
B) Halogens
C) Noble gases
D) Alkaline earth metals
- 15. Which of the following is not among the halogens?
A) Fluorine
B) Iodine
C) Hydrogen
D) Bromine
E) Chlorine
- 16. Which of the following is not a metal?
A) Oxygen
B) Calcium
C) Magnesium
D) Sodium
- 17. Which of the following is not a noble gas?
A) Argon
B) Helium
C) Chlorine
D) Neon
- 18. A bonding that involves the transfer of electrons is called _____
A) Covalent bonding
B) Ionic bonding
- 19. State the group and the period Aluminium (Al) belongs to.
A) Group 2, Period 2
B) Group 2, Period 3
C) Group 3, Period 2
D) Group 3, Period 3
- 20. Which chemical law states that 'When gases react, the volumes of the reactants and the products are in simple whole number ratios."?
A) Avogadro's Law
B) Dalton's Law of Partial Pressure
C) Law of Conservation of Mass
D) Gay-Lussac's Law
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