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