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  • A chemical compound is used in the soap and glass industry. It is prepared from brine. (a) Write the chemical name, common name and chemical formula of <img alt="'X'" s

A chemical compound 'X' is used in the soap and glass industry. It is prepared from brine.

(a) Write the chemical name, common name and chemical formula of 'X'.

(b) Write the equation involved in its preparation.

(c) What happens when it is treated with water containing Ca or Mg salts ?

 

 

 

 
 
 
 
 

Answers (1)

 

(a) Chemical name, common name and chemical formula of 'X'

Chemical Name – Sodium Carbonate decahydrate

Common Name – Washing Soda

Chemical Formula - Na2CO3 . 10H2O

(b) Equation involved in its preparation- 

NaCl + H2O + CO2 + NH3 → NH4Cl + NaHCO3

2NaHCO3  → Na2CO3 + H2O + CO2

Na2CO3 + 10H2O → Na2CO3 . 10H2O

(c) It helps in removing permanent hardness./It forms insoluable Ca or Mg salts in the form of scum when it is treated with water containing Ca or Mg salts ?

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Safeer PP

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