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Important Questions

Chemical Reaction and Equations

Bihar Board · Class 10 · Science

Most important questions from Chemical Reaction and Equations for Bihar Board Class 10 Science board exam 2026. MCQs, short answer, and long answer questions with marks.

62 questions20 flashcards5 concepts

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An illustration showing common daily life situations where chemical reactions occur, such as milk turning sour, iron rusting, grapes fermenting, food cooking, food digestion, and respiration.
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62 Questions·
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Sample Questions

1multiple choice

What is an exothermic reaction?

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Reaction releasing heat

An exothermic reaction releases heat energy during the chemical process.

2multiple choice

What causes iron to rust?

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Exposure to moisture and air

Rusting occurs when iron is exposed to moisture and oxygen, causing oxidation.

3multiple choice

What is oxidation?

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Gain of oxygen

Oxidation involves the gain of oxygen or loss of hydrogen in a chemical reaction.

4multiple choice

What is a displacement reaction?

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An element replaces another in a compound

In a displacement reaction, a more reactive element displaces a less reactive element from its compound.

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Frequently Asked Questions

What are the important topics in Chemical Reaction and Equations for Bihar Board Class 10 Science?
Key topics in Chemical Reaction and Equations include Chemical Reactions and Equations - Complete Concept Map, Chemical Reactions and Equations - Complete Overview, Chemical Reactions and Equations Overview. These are the concepts Bihar Board Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Chemical Reaction and Equations — Bihar Board Class 10 Science?
Understand the core concepts first, then work through the 62 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Chemical Reaction and Equations?
There are 62 practice questions available for Chemical Reaction and Equations. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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