CBSE Class 7 Science The World of Metals and Non metals (Class 7 NCERT New) Quiz 14

1. Which of the following elements is a liquid at room temperature and is classified as a metal?

A A) Mercury B B) Bromine C C) Gallium D D) Francium

2. Which of the following is ametal?

A Sulfur B Iron C Oxygen D Carbon

3. Which property is characteristic of non- metals?

A Malleability B Ductility C Brittle D Luster

4. Which metal is liquid at room temperature?

A Mercury B Sodium C Aluminum D Lead

5. What is the common property of metals?

A Poor conductors of heat B High melting points C Dull appearance D Non-malleable

6. Which of the following is a non-metal?

A Magnesium B Chlorine C Copper D Zinc

7. Which of these elements is typically a good conductor of electricity?

A Sulfur B Graphite C Phosphorus D Argon

8. Metals generally react with acids to produce:

A Salt and hydrogen gas B Water C Carbon dioxide D Oxygen

9. Which non-metal is essential for respiration?

A Nitrogen B Oxygen C Helium D Argon

10. Which of the following metals is used ni making electrical wires?

A Iron B Aluminum C Gold D All of the above