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MP Board · Class 10 · Science · Chemical Reactions and EquationsWhat type of reaction is represented by the equation: 2H₂ + O₂ → 2H₂O?

📊Student Analytics & Stats
Total Attempts: 34
Accuracy Rate: 64.7%
Step-by-Step Solution

Step 1: Identify the reactants and product

The equation shows hydrogen gas (H₂) reacting with oxygen gas (O₂) to form water (H₂O).

Step 2: Classify the reaction

When two or more substances combine to form a single product, the reaction is called a combination (or synthesis) reaction.

Step 3: Verify with definition

A combination reaction is defined as:

Two or more reactants combine to produce one product. The given equation fits this definition perfectly.

Conclusion

Therefore, the reaction 2H₂ + O₂ → 2H₂O is a combination reaction.

Correct option: B

Detailed Options Breakdown
Option : Decomposition reaction

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.

Option 1: Combination reaction (Correct Answer)

Correct choice. Refer to the step-by-step verified solution guidelines above for details.

Option 2: Displacement reaction

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.

Option 3: Double displacement reaction

Incorrect choice. This distractor represents a common misunderstanding of the core principles of Chemical Reactions and Equations.

💡 Study Guide: This question tests core syllabus concepts from Chemical Reactions and Equations. For formulas, key summaries, and mock exam reference guides, read the full Chemical Reactions and Equations Revision Notes.
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