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- 1. Multiple Choice
Metals are generally hard. Which of these metals is an exception and is soft and can be cut with a knife?
Iron
Gold
Sodium
Magnesium
- 2. Multiple Choice
Which of the following is found in liquid state room temperature?
Mercury
Aluminum
Sodium
Silver
- 3. Multiple Choice
Which of the following properties of copper is not responsible for making it suitable for making electric wires?
Its color
It is solid
It is a good conductor of electricity
Its ductility
- 4. Multiple Choice
Which non-metal reacts with air vigorously and catches fire?
Sodium
Nitrogen
Phosphorous
Carbon
- 5. Multiple Choice
Which of the following materials is not ductile?
Aluminum
Silver
Sulphur
Copper
- 6. Multiple Choice
Which metal hydroxide can be used to cure acidity in the stomach?
Iron Hydroxide
Copper Hydroxide
Zinc Hydroxide
Magnesium Hydroxide
- 7. Multiple Choice
Which gas is produced when metals react with acids?
Nitrogen
Ozone
Carbon Dioxide
Hydrogen
- 8. Multiple Choice
_____________ solution is formed when a piece of iron is put in copper sulphate solution?
Copper carbonate
Iron oxide
Iron sulphate
None of these
- 9. Multiple Choice
Which gas is formed when non-metals react with water?
Carbon Dioxide
Hydrogen
Non-metals do not react with water.
Nitrogen
- 10. Multiple Choice
Which of these metals does not react with dilute hydrochloric acid even on heating but reacts with sulphuric acid?
Copper
Iron
Zinc
Aluminum
- 11. Multiple Choice
This non-metal is used in purification of water?
Sulphur
Hydrogen
Chlorine
Carbon
- 12. Fill in the Blank
The green coating acquired on copper when kept in air for a long time consists of copper hydroxide and ___________.
(WRITE ANSWER IN BLOCK LETTERS)
- 13. Multiple Choice
Which is the strongest metal on earth? (BONUS)
Diamond
Titanium
Tungsten
Calcium
- 14. Multiple Choice
The hydroxide of non-metal sulphur turns red litmus paper to __________.
Blue
Purple
Green
It remains the same
- 15. Fill in the Blank
The greenish coating on copper is called ___________.
(BONUS)
(WRITE IN BLOCK LETTERS)
- 16. Multiple Choice
Which of these is sonorous?
Diamond
Copper
Sulphur
Phosphorous
- 17. Multiple Choice
In galvanization a layer of ___________ is deposited on iron to prevent it from rusting.
Zinc
Chromium
Titanium
Tungsten
- 18. Multiple Choice
This material is stored in kerosene. It is___________
Sulphur
Potassium
Sodium
Phosphorous
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