Q25
2 marksShort AnswerSection B

Write the preparation of Baking soda. How does it help in making cakes soft and spongy?

Acids, Bases and Salts
Baking Soda
Official Answer

Baking soda is prepared by heating sodium bicarbonate. 2NaHCO3sodium bicarbonate→HeatNa2CO3sodium carbonate+H2Owater+CO2carbon dioxide\underset{\text{sodium bicarbonate}}{\text{2NaHCO}_3} \xrightarrow{\text{Heat}} \underset{\text{sodium carbonate}}{\text{Na}_2\text{CO}_3} + \underset{\text{water}}{\text{H}_2\text{O}} + \underset{\text{carbon dioxide}}{\text{CO}_2}

baking sodasodium bicarbonatecarbon dioxidecakesspongy

Marking Scheme

  • 1/2 for the preparation of baking soda
  • 2/1 for explaining how it helps in making cakes soft and spongy

Hint

Baking soda is a common ingredient used in baking.

Quick Oral Answer

Baking soda is prepared by heating sodium bicarbonate. It releases carbon dioxide gas when heated, which gets trapped in the cake batter, making it soft and spongy.

Analysis & Explanation

Baking soda is used in making cakes soft and spongy. When baking soda is heated, it releases carbon dioxide gas, which gets trapped in the cake batter, making it soft and spongy.

Common Mistakes

  1. 1confusing baking soda with baking powder
  2. 2not explaining how baking soda helps in making cakes soft and spongy

Interesting Facts

Baking soda is also used as an antacid to neutralize stomach acid.

Baking soda can also be used as a natural cleaner and deodorizer.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2026?

This question carries 2 marks in the CBSE Class 10 Science 2026 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Acids, Bases and Salts" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Baking Soda" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2026 paper?

This is a Short Answer question from Section B in the CBSE Class 10 Science 2026 paper.