Important Chemicals from Common Salt

1. Baking soda's chemical name is:

• Sodium Carbonate
• Sodium Bicarbonate
• Calcium Sulphate
• Sodium Chloride

2. Which of these is used in baking as a leavening agent?

• Sodium Chloride
• Plaster of Paris
• Baking soda
• Washing soda

3. The chemical formula for washing soda is:

• NaHCO3
• CaSO4.2H2O
• Na2CO3.10H2O
• NaCl

4. Which is used for plastering fractured bones?

• Sodium Carbonate
• Calcium Sulphate hemihydrate
• Sodium Bicarbonate
• Sodium Chloride

5. Common salt is chemically known as:

• Sodium Carbonate
• Sodium Bicarbonate
• Sodium Chloride
• Calcium Sulphate

6. What is the main component of the black crust formed on walls due to air pollution?

• Sodium Carbonate
• Sodium Bicarbonate
• Sodium Sulphate
• Sodium Chloride

7. Which one is used in fire extinguishers?

• Baking soda
• Washing soda
• Plaster of Paris
• Common salt

8. Plaster of Paris is obtained by heating:

• Common salt
• Limestone
• Gypsum
• Baking soda

9. Which one is not water-soluble?

• Washing soda
• Common salt
• Baking soda
• Plaster of Paris

10. What makes hard water soft?

• Sodium Bicarbonate
• Plaster of Paris
• Sodium Chloride
• Washing soda