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.

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. Correct Answer Neither a nor b

The correct answer is Neither a nor b.

Key Points

  • Baking soda is Sodium Bicarbonate/Sodium Hydrogen Carbonate (NaHCo3). It is used in the kitchen. It is an alkali. Hence, statement a is incorrect.
    • It is soluble in water.
    • Na2CO3 + CO2 + H2O → 2 NaHCO
  • Washing soda is Sodium Carbonate (Na2Co3). It is used as cleaning agent for domestic purposes and in various industries. Hence, statement b is incorrect.
    • ​It is an alkali and soluble in water.
    • Na2CO3 + 10 H2O → 2 Na2CO3 . H2O

Additional Information

  • Alkali is any soluble hydroxide of Alkali metals.
    • Lithium
    • Sodium
    • Potassium
    • Rubidium
    • Cesium 
  • Alkalies are strong bases i.e. their pH level is >7.
  • They turn red litmus blue.
  • Alkali also refers to the soluble hydroxides of Alkali Earth metals like-
    • Calcium
    • Strontium
    • Barium

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