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प्रश्न
State two properties and two uses of washing soda.
उत्तर
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- Washing soda is a transparent crystalline solid.
- Washing soda is soluble in water. The solution of washing soda is alkaline and turns red litmus paper to blue.
- Washing soda is used for removing permanent hardness of water.
- It is used in the manufacture of soap, glass, paper and sodium compounds, such as borax.
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संबंधित प्रश्न
Give two important uses of washing soda.
What is the common name of (a) NaHCO3 and (b) Na2CO3.10H2O?
Fill in the following blank:
Chemical formula of washing soda is ..................
Write the formulae of sodium chloride and sodium carbonate.
Name a sodium compound which is used for making borax and glass.
Write the name and formula of one salt each which contains:
ten molecules of water of crystallisation
Write the chemical formula.
Washing soda
Answer the following question.
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 ____________.
