Chemistry
Grade-10
Easy
Question
The correct statement among the following is
- In the Solvay process, sodium bicarbonate is obtained in the carbonation tower.
- Calcium carbonate is thermally decomposed to give CaO and CO2.
- Sodium carbonate is also used as bio-pesticide.
- Sodium bicarbonate is used for whitening the teeth and removing plaque.
Hint:
Sodium carbonate is a bio-pesticide.
The correct answer is: Sodium carbonate is also used as bio-pesticide.
- In the Solvay process, sodium bicarbonate is precipitated out in the solution.
- Calcium carbonate is thermally decomposed to give CaO and CO2.
- Sodium carbonate is also used as bio-pesticide.
- Sodium bicarbonate is used for removing plaque.
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