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Question

Assertion: Tartaric acid or Citric acid is added to Baking soda.

Reason: Baking soda as on heating it produces Na2CO3 which is bitter in taste and is injurious to health


A

The assertion is true, but the reason is false.

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B

Both assertion and reason are false.

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C

Both assertion and reason are true. The reason is the correct explanation of the assertion.

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D

Both assertion and reason are true. The reason is not the correct explanation of assertion.

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Solution

The correct option is C

Both assertion and reason are true. The reason is the correct explanation of the assertion.


Explanation for Correct option

The explanation for assertion:

  1. The chemical compound sodium bicarbonate, also referred to as baking soda or bicarbonate of soda, has the formulaNaHCO3.
  2. It is a salt made up of sodium cation and bicarbonate anion.
  3. Baking powder is created by mixing baking soda with tartaric acid.
  4. This is done because tartaric acid neutralizes the effect of sodium carbonate that is produced when sodium hydrogen carbonate decomposes when heated.
  5. If tartaric acid is not added it will due to the alkaline composition of sodium carbonate the substance will taste bitter.

The explanation for the reason:

  1. The chemical compound sodium bicarbonate, also referred to as baking soda or bicarbonate of soda, has the formulaNaHCO3.
  2. It is a salt made up of sodium cation and bicarbonate anion.
  3. On decomposition it gives sodium carbonate, water, and carbon dioxide.NaHCO3(s)SodiumbicarbonateNa2CO3(s)Sodiumcarbonate+CO2(g)carbondioxide+H2O(l)water
  4. Sodium carbonate is an organic compound due to the alkaline composition the substance will taste bitter.
  5. It is harmful to humans if taken in excess as it will make the stomach or digestive tract severely irritated, and vomiting can occur. Additionally, diarrhea can also happen.

Therefore, both assertion and reason are true. The reason is the correct explanation of the assertion


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