📘 Assertion–Reason Analysis
🔵 Assertion
A balanced chemical equation is essential for stoichiometric calculations.
Explanation: Stoichiometry deals with the quantitative relationship between reactants and products. These relationships are obtained from the coefficients of a balanced chemical equation.
2H₂ + O₂ → 2H₂O
This equation tells us that:
2 mol H₂ : 1 mol O₂ : 2 mol H₂O
🟠 Reason
The coefficients of a balanced chemical equation provide the mole ratios of the reacting species.
Explanation: In the equation above, the coefficients 2, 1 and 2 directly represent the mole ratio of H₂, O₂ and H₂O.
🎬 Mole Ratio Animation
H₂
H₂
+
O₂
→
H₂O
H₂O
2 mol H₂ : 1 mol O₂ : 2 mol H₂O
The coefficients establish the mole ratio required for stoichiometric calculations.
🔗 Relationship Between Assertion & Reason
The Reason correctly explains why the Assertion is true.
Balanced Equation
→
Coefficients
→
Mole Ratio
→
Stoichiometric Calculation
✅ Final Answer
Both Assertion and Reason are TRUE,
and Reason is the correct explanation of Assertion.
🎯 Key Concept
Balanced chemical equation → gives mole ratio → used for stoichiometric calculations.
