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प्रश्न
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.
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उत्तर
- Baking soda is used for making cakes and bread soft, spongy.
- Calcium Oxychloride hemihydrate is used in textile industry.
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संबंधित प्रश्न
Give two important uses of washing soda.
Fill in the following blank:
Chemical formula of washing soda is ..................
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.
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which four substances are utilised in the production of washing soda?
Write the name and formula of one salt each which contains:
ten molecules of water of crystallisation
The number of molecules of water of crystallization in washing soda is ______.
Chemical formula of washing soda is ____________.
The name of the salt used to remove permanent hardness of water is ______.
