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Chemistry · Some Basic Concepts of Chemistry
हिन्दीFor the complete combustion of propane according to the balanced equation: \( \text{C}_3\text{H}_8(\text{g}) + 5\text{O}_2(\text{g}) \rightarrow 3\text{CO}_2(\text{g}) + 4\text{H}_2\text{O}(\text{l}) \) Consider the following statements: (A) One mole of \( \text{C}_3\text{H}_8(\text{g}) \) requires five moles of \( \text{O}_2(\text{g}) \). (B) \( 44\text{ g} \) of propane reacts completely to produce \( 132\text{ g} \) of \( \text{CO}_2 \). (C) Under identical temperature and pressure, \( 22.7\text{ L} \) of \( \text{C}_3\text{H}_8(\text{g}) \) produces \( 68.1\text{ L} \) of \( \text{CO}_2(\text{g}) \). (D) The stoichiometric coefficients represent the mass ratio of reactants and products. Choose the correct answer from the options given below:
Correct answer · Option 3
(A), (B) and (C) only
Explanation
Statements (A), (B), and (C) are quantitatively correct based on stoichiometric mole, mass (\( 3 \times 44 = 132\text{ g} \)), and volume ratios. Statement (D) is incorrect because stoichiometric coefficients represent molar or molecular ratios, not mass ratios.
