Chemistry · Some Basic Concepts of Chemistry
हिन्दीReferring to the molecular models shown, which statement accurately accounts for the mass ratio of constituent elements in a single molecule of water (\( \text{H}_2\text{O} \)) versus a single molecule of carbon dioxide (\( \text{CO}_2 \))? Which of the above statements is/are correct?
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Correct answer · Option A
Water has an \( \text{H}:\text{O} \) mass ratio of \( 1:8 \), while carbon dioxide has a \( \text{C}:\text{O} \) mass ratio of \( 3:8 \).
Explanation
In \( \text{H}_2\text{O} \), mass ratio of \( \text{H}:\text{O} = (2 \times 1) : 16 = 2:16 = 1:8 \). In \( \text{CO}_2 \), mass ratio of \( \text{C}:\text{O} = 12 : (2 \times 16) = 12:32 = 3:8 \).