Question 252 marksShort AnswerSection B

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

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

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

Acids, Bases and Salts

Baking Soda

Official answer

\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 soda

sodium bicarbonate

carbon dioxide

cakes

spongy

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

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

Common mistakes

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

Analysis and 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.

Interesting facts

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

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

Question details

Q25 of 39 questions

Board: CBSE
Class: Class 10
Subject: Science
Year: 2026
Section: Section B
Marks: 2
Type: Short Answer
Chapter: Acids, Bases and Salts
Topic: $Baking Soda$
Bloom's level: Remembering
Syllabus topic: $Preparation of Baking Soda$

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Frequently asked questions

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

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

$Which chapter does this question come from in Science?$

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

$What topic does this question cover in Science?$

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

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

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