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A compound 'Z' is used for making baking soda, as an antacid and in fire extinguishers. On heating 'Z' produces a compound which is used in the soap industry. What is the name of compound 'Z'?

A compound 'Z' is used for making baking soda, as an antacid and in fire extinguishers. On heating 'Z' produces a compound which is used in the soap industry. What is the name of compound 'Z'? Correct Answer Sodium hydrogen carbonate

The correct answer is Sodium hydrogen carbonate.

Concept:

Baking soda:

  • The chemical name of baking soda is sodium hydrogen carbonate (NaHCO3).
  • It is a mild non-corrosive basic salt.

Explanation:
Preparation of Baking Soda:

  •  It is produced through the Solvay process by using sodium chloride, sodium chloride, water, and carbon dioxide as raw materials.

NaCl + H2O + CO2 + NH3     →          NH4Cl                    +                         NaHCO3 
                                               (Ammonium chloride)                    (Sodium hydrogen carbonate)

On heating Sodium hydrogen carbonate, the following reaction takes place:

2NaHCO3 + heat → Na2 CO3 + H2O + CO2 

Na2 CO3 is used to make washing soda that is used in the soap industry.                                                     

Uses of baking soda:

Baking soda undergoes a reaction with mild edible acid such as tartaric acid to manufacture baking powder.

  • NaHCO3   +          H+             → CO2  + H2O + Sodium salt of acid
                       (From any acid)
  • This carbon dioxide produced makes bread or cake rise thereby making them soft and spongy.

Being alkaline it is also an active ingredient in antacids that acts by neutralizing the excess acid produced in the stomach.

It is also used in soda-acid fire extinguishers.

Thus, the compound Z is baking soda i.e., sodium hydrogen carbonate. 

Related Questions

Which of the following two statements is correct?   a. The soda commonly used in the kitchen for making tasty crispy pokodas is baking soda. The baking soda is a sodium carbonate.  b. Washing soda is usually used as a cleaning agent for domestic purposes and in glass, soap, paper industries. The washing soda is sodium hydrogen carbonate.
Baking soda is used ______. I. for making baking powder II. in soda-acid fire extinguishers III. to neutralize excess acid in the stomach
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2. in soda-acid fire extinguishers.
3. to neutralise excess acid in the stomach.
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2. Baking soda is used as a fire extinguisher.
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