Practice

The World of Metals and Non-metals — Practice

15 questions 15 min Recall + understand

Q1. The property by which materials can be beaten into thin sheets is called
- A. Malleability
- B. Ductility
- C. Sonority
- D. Brittleness
Q2. The property of materials by which they can be drawn into wires is called
- A. Sonority
- B. Ductility
- C. Malleability
- D. Conduction
Q3. The property of metals that enables them to produce a ringing sound is called
- A. Malleability
- B. Ductility
- C. Sonority
- D. Lustre
Q4. The brown deposit that develops on iron objects left in moist air is called
- A. Patina
- B. Galvanisation
- C. Tarnish
- D. Rust
Q5. When a piece of coal or a lump of sulfur is beaten with a hammer, it breaks into pieces. Such materials are said to be
- A. Brittle
- B. Malleable
- C. Ductile
- D. Sonorous
Q6. Materials that transfer heat well from one point to another are called
- A. Insulators
- B. Conductors
- C. Brittle materials
- D. Sonorous materials
Q7. According to the chapter, one gram of gold can be drawn into a wire of length approximately
- A. 20 metres
- B. 200 metres
- C. 2 kilometres
- D. 20 kilometres
Q8. Which of the following is generally true of non-metals?
- A. Hard, lustrous and good conductors
- B. Malleable, ductile and sonorous
- C. Usually soft, dull, neither malleable nor ductile
- D. Always liquid at room temperature
Q9. Which of the following metals is found in a liquid state at room temperature?
- A. Mercury
- B. Sodium
- C. Iron
- D. Copper
Q10. Gradual deterioration of metal surfaces caused by air, water or other substances is known as
- A. Galvanisation
- B. Corrosion
- C. Conduction
- D. Combustion
Q11. Which metal is commonly used to make food packaging materials because it is cheap and its thin sheets can be folded easily into any shape?
- A. Gold
- B. Aluminium
- C. Iron
- D. Copper
Q12. Which of the following metals catches fire when it comes in contact with water?
- A. Copper
- B. Aluminium
- C. Zinc
- D. Sodium
Q13. According to the chapter, which two metals are the most malleable?
- A. Gold and silver
- B. Iron and copper
- C. Aluminium and zinc
- D. Sodium and potassium
Q14. In a tester circuit, materials that allow electricity to flow through them and make the bulb glow are called
- A. Good conductors of electricity
- B. Poor conductors of electricity
- C. Brittle materials
- D. Sonorous materials
Q15. The oxide of a metal is dissolved in water and tested with litmus paper. The solution will
- A. Turn blue litmus red because metal oxides are acidic
- B. Turn red litmus blue because metal oxides are basic
- C. Have no effect because metal oxides are neutral
- D. Turn both papers green

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