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प्रश्न
Write the chemical formula.
Washing soda
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उत्तर
Na2CO3.10H2O
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संबंधित प्रश्न
Name the sodium compound which is used for softening hard water.
Give two important uses of washing soda.
Name a metal carbonate which is soluble in water.
Name the metal whose carbonate is known as washing soda.
Fill in the following blank:
Sodium hydrogen carbonate is .................. soda whereas sodium carbonate is ................. soda.
What is washing soda?
Write the formulae of sodium chloride and sodium carbonate.
Explain why an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic (or alkaline). Write chemical equations of the reactions involved.
What is meant by "water of crystallisation" in a substance? Explain with an example.
State two uses each of the following compounds:
Hydrogen
What is meant by saying that washing soda has detergent properties?
How many molecules of water of crystallisation (per formula unit) are present in:
washing soda?
The number of molecules of water of crystallization in washing soda is ______.
How is washing soda prepared from sodium carbonate? Give its chemical equation. State the type of this salt. Name the type of hardness of water that can be removed by it?
Correct the mistakes:
- Washing soda is used for making cakes and bread soft, spongy.
- Calcium sulphate hemihydrate is used in textile industry for bleaching cloths.
Correct the wrong statement given below:
Magnesium hydroxide is used in whitewashing buildings.
