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प्रश्न
Write the chemical formula.
Washing soda
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उत्तर
Na2CO3.10H2O
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संबंधित प्रश्न
Give two important uses of washing soda.
What is the common name of NaHCO3?
Chemical formula of washing soda is ______.
Sodium hydrogencarbonate is ______ soda whereas sodium carbonate is ______ soda.
What is washing soda?
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 of the following compound:
Hydrogen
Describe how washing soda is produced starting from sodium chloride (common salt). Write equations of all the reactions involved.
What is meant by saying that washing soda has detergent properties?
Write the name and formula of one salt which contains:
Ten molecules of water of crystallisation.
The number of molecules of water of crystallization in washing soda is ______.
Give a scientific explanation.
The hard water of a well becomes soft on adding washing soda to it.
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.
Chemical formula of washing soda is ____________.
The name of the salt used to remove permanent hardness of water is ______.
