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- 1. Fill in the Blank
Name the gas liberated when metals react with acids?
- 2. Multiple Choice
Which gas is liberated when Sodium hydrogen carbonate reacts with an acid?
Hydrogen
Carbondioxide
Nitrogen dioxide
Sulphur dioxide
- 3. Multiple Choice
What is plaster of Paris?
- 4. Multiple Choice
What is used to disinfect water?
Baking Soda
Sodium carbonate
Bleaching Powder
Sodium Hydroxide
- 5. Multiple Choice
Which compound is used to make soda acid fire extinguisher?
Sodium Carbonate
Sodium Hydroxide
Bleaching Powder
Sodium Hydrogen Carbonate
- 6. Multiple Choice
Which compound is prepared using Chlor Alkali process?
Plaster of Paris
Bleaching Powder
Sodium hydroxide
Sodium carbonate
- 7. Multiple Choice
When acid and base reacts ........... and .............. are formed?
Salt , Hydrogen
Salt, Water
Salt, Carbon dioxide
Hydrogen, carbondioxide
- 8. Multiple Choice
Metallic oxides are basic in nature.
True
False
- 9. Multiple Choice
Baking Powder is.............
Baking Soda + Mild Base
Baking Soda + Mild acid
Only Baking Soda
Baking Soda + Sodium Carbonate
- 10. Multiple Choice
Confirmatory test for Carbon dioxide gas is:
Carbon dioxide burns with a POP sound
It smells of burning Sulphur
Carbon dioxide turns lime water milky
Carbon dioxide turn red litmus blue
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