(i) Write the chemical name and chemical formula of washing soda.

Question

(i) Write the chemical name and chemical formula of washing soda.

(i) Write the chemical name and chemical formula of washing soda.

(ii) How is it obtained from sodium chloride ? Give equations of the reaction.

(iii) Why is it called a basic salt ? Give its any one use

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

(i) Chemical name -Sodiurn carbonate decihydrate

Formula - Na₂CO₃.10H₂O

(ii) NaCl+H₂O+CO₂+NH₃ → NH₄Cl+NaHCO₃.

2NaHCO₃+ Heat →Na₂CO₃+CO₂↑+H₂O

NaCO₃+10H₂O → Na₂CO₃.10H₂O

(iii) It is a basic salt because when dissolved in water, it gives a strong base NaOH.

It is used as a cleaning agent, in paper and glass industry.