1.

(i) A white powder is an active ingredient of antacids and is used in preparation of baking powder. Name the compound and explain that how it is manufactured. Give chemical equation.(ii) Write a chemical equation to show the effect of heat on this compound.

Answer»

(i) Compound is NaHCO3/baking soda/sodium hydrogen carbonate

Manufacture - NH3 + NaCl + H2O + CO2 → NH4Cl+NaHCO3

(ii)2NaHCO3 +Heat →  Na2CO3 + H2O + CO2  

Detailed Answer:

(i) The Compound is NaHCO3 (Sodium hydrogen carbonate)(Commonly known as baking soda)

Manufacturing Sodium hydrogen carbonate :

NH3 + NaCl + H2O + CO2 → NH4Cl+NaHCO3  

(ii) On heating, Baking Soda decomposes into Sodium carbonate, water and carbon diofde.

2NaHCO3 +Heat →  Na2CO3 + H2O + CO2  



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