- 1. Which of the following is NOT TRUE about Physical change?
A) No new substance is formed
B) Changes are reversible
C) There is no change in chemical properties
D) A new substance is formed
- 2. Which of the following is NOT TRUE about Chemical change?
A) Changes are irreversible
B) A new substance is formed
C) No new substance is formed
D) The chemical properties change
- 3. All the following are physical change except ______
A) changing the shape of a metal
B) melting of ice
C) dissolving sugar in water
D) burning of wood
- 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) 2,8,8,1
B) 2,8,2
C) 2,8,1
D) 2,8,8,2
- 9. Which of the following is the electronic configuration of Carbon?
A) 2,8
B) 2,5
C) 2,4
D) 2,6
- 10. What is the oxidation number of Nitrogen (N) in HNO3?
A) 6
B) 4
C) 7
D) 5
- 11. Group 1 elements are also called ________
A) Alkali metals
B) Alkaline earth metals
C) Noble gases
D) Halogens
- 12. Group 2 elements are also called _____
A) Noble gases
B) Alkaline earth metals
C) Halogens
D) Alkali metals
- 13. Group 7 elements are also called ______
A) Alkaline earth metals
B) Alkali metals
C) Noble gases
D) Halogens
- 14. Group 0 elements are also called ________
A) Noble gases
B) Alkaline earth metals
C) Halogens
D) Alkali metals
- 15. Which of the following is not among the halogens?
A) Bromine
B) Chlorine
C) Hydrogen
D) Fluorine
E) Iodine
- 16. Which of the following is not a metal?
A) Sodium
B) Oxygen
C) Calcium
D) Magnesium
- 17. Which of the following is not a noble gas?
A) Neon
B) Chlorine
C) Helium
D) Argon
- 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 2
B) Group 3, Period 2
C) Group 2, Period 3
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) Gay-Lussac's Law
B) Avogadro's Law
C) Law of Conservation of Mass
D) Dalton's Law of Partial Pressure
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