Chemistry
Grade-10
Easy
Question
What is the role of calcium carbonate in the Solvay process?
- To provide CO32- for the formation of washing soda
- To provide HCO3- for the formation of washing soda
- Both A and B
- To provide OH- ions for the formation of washing soda
Hint:
Washing soda is a by product of Solvay process.
The correct answer is: To provide CO32- for the formation of washing soda
- Solvay process is an industrial method of making sodium carbonate from calcium carbonate and sodium chloride.
- The calcium carbonate is first heated to give calcium oxide and carbon dioxide, which is bubbled into a solution of sodium chloride in ammonia.
- Washing soda(Na2CO3.10H2O) is an intermediate product of Solvay process.
- The role of calcium carbonate is to provide CO32- for the formation of washing soda.
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