1. Which of the following is a metal?
A) Oxygen
B) Nitrogen
C) Iron
D) Sulfur
Answer: C) Iron
2. Which property is generally shown by metals?
A) Poor conductivity
B) Brittleness
C) Dull appearance
D) Malleability
Answer: D) Malleability
3. Which of the following is a non-metal?
A) Copper
B) Carbon
C) Zinc
D) Aluminium
Answer: B) Carbon
4. Metals are usually good conductors of:
A) Heat only
B) Electricity only
C) Both heat and electricity
D) Neither heat nor electricity
Answer: C) Both heat and electricity
5. Which non-metal is liquid at room temperature?
A) Chlorine
B) Bromine
C) Iodine
D) Phosphorus
Answer: B) Bromine
6. The ability of metals to be drawn into wires is called:
A) Ductility
B) Sonority
C) Malleability
D) Brittleness
Answer: A) Ductility
7. Which gas is a non-metal?
A) Hydrogen
B) Sodium
C) Magnesium
D) Iron
Answer: A) Hydrogen
8. Metals react with oxygen to form:
A) Acids
B) Bases
C) Metal oxides
D) Salts only
Answer: C) Metal oxides
9. Which of the following is the hardest natural substance and a non-metal?
A) Graphite
B) Diamond
C) Sulfur
D) Iodine
Answer: B) Diamond
10. Which metal is stored in kerosene oil?
A) Copper
B) Sodium
C) Gold
D) Iron
Answer: B) Sodium
11. Non-metals are usually:
A) Lustrous
B) Malleable
C) Brittle
D) Sonorous
Answer: C) Brittle
12. Which metal is liquid at room temperature?
A) Mercury
B) Aluminium
C) Iron
D) Silver
Answer: A) Mercury
13. The property of producing sound on striking is called:
A) Ductility
B) Sonority
C) Hardness
D) Brittleness
Answer: B) Sonority
14. Which of the following is a good conductor of electricity?
A) Sulfur
B) Phosphorus
C) Copper
D) Iodine
Answer: C) Copper
15. Graphite is an exception because it is:
A) A metal
B) A non-metal that conducts electricity
C) A liquid
D) A noble gas
Answer: B) A non-metal that conducts electricity
16. Metals generally form which type of ions?
A) Negative ions
B) Positive ions
C) Neutral atoms
D) Complex ions only
Answer: B) Positive ions
17. Non-metals usually gain electrons to form:
A) Cations
B) Protons
C) Anions
D) Neutrons
Answer: C) Anions
18. Which metal is the best conductor of electricity?
A) Iron
B) Silver
C) Aluminium
D) Zinc
Answer: B) Silver
19. Which of the following is a noble gas?
A) Oxygen
B) Nitrogen
C) Helium
D) Carbon
Answer: C) Helium
20. Metals are generally:
A) Soft and dull
B) Hard and shiny
C) Brittle and dull
D) Gaseous
Answer: B) Hard and shiny
21. Which non-metal is essential for respiration?
A) Nitrogen
B) Hydrogen
C) Oxygen
D) Chlorine
Answer: C) Oxygen
22. The reaction of a metal with water produces:
A) Metal oxide only
B) Metal hydroxide and hydrogen gas
C) Acid and oxygen
D) Salt and nitrogen
Answer: B) Metal hydroxide and hydrogen gas
23. Which of the following is used in electrical wiring?
A) Sulfur
B) Copper
C) Phosphorus
D) Bromine
Answer: B) Copper
24. Non-metals generally have:
A) High melting points
B) Low melting points
C) Metallic luster
D) High density
Answer: B) Low melting points
25. Which metal is most malleable?
A) Gold
B) Iron
C) Zinc
D) Lead
Answer: A) Gold
26. Which non-metal is used in fertilizers?
A) Nitrogen
B) Helium
C) Neon
D) Argon
Answer: A) Nitrogen
27. Metals react with acids to produce:
A) Salt and oxygen
B) Salt and hydrogen gas
C) Base and nitrogen
D) Acid and water
Answer: B) Salt and hydrogen gas
28. Which of the following is a metalloid?
A) Silicon
B) Sodium
C) Chlorine
D) Calcium
Answer: A) Silicon
29. Rusting is a reaction between iron and:
A) Nitrogen
B) Hydrogen
C) Oxygen and moisture
D) Carbon dioxide only
Answer: C) Oxygen and moisture
30. Which property distinguishes metals from non-metals?
A) Ability to conduct electricity
B) Low density
C) Dull surface
D) Poor heat conduction
Answer: A) Ability to conduct electricity