📚 CBSE Grade-10 Study Guide Open in the Study Guide single page app →
Home › Science (AI practice)

Science — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [2] straightforward initial-understanding
State any two uses of baking soda.
Generated by claude-sonnet-4-6 · 2026-06-17 12:35 · grounding rag
Model Answer

Two uses of baking soda (NaHCO₃):

  1. Antacid: It is used as a remedy for acidity (indigestion) because it neutralises excess hydrochloric acid present in the stomach.
  2. Fire extinguisher: It is used in soda-acid fire extinguishers, where it reacts with acid to produce CO₂, which extinguishes the fire.

Source: Acids, Bases and Salts, Chapter 2

Explanation

The question is directly from Exercise 15 of Chapter 2. Examiners expect two distinct, clearly stated uses — one mark each. Mentioning baking powder (used in cooking) is also acceptable as a third use, but the two above are most textbook-standard. Always name the use and briefly state the reason/reaction for full marks.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.