AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
\(4 \mathrm{~g}\) of a hydrocarbon on complete combustion gave \(12.571 \mathrm{~g}\) of \(\mathrm{CO}_2\) and \(5.143 \mathrm{~g}\) of water. What is the empirical formula of the hydrocarbon?
- A \(\mathrm{CH}\)
- B \(\mathrm{CH}_2\)
- C \(\mathrm{CH}_3\)
- D \(\mathrm{C}_2 \mathrm{H}_3\)
Answer & Solution
Correct Answer
(B) \(\mathrm{CH}_2\)
Step-by-step Solution
Detailed explanation
Percentage of \( \begin{aligned} \mathrm{C} & =\frac{12}{14} \times \frac{\text { weight of } \mathrm{CO}_2 \times 100}{\text { weight of organic compound }} \\ & =\frac{12}{44} \times \frac{12.571}{4} \times 100=85.7 \% \end{aligned} \) Percentage of \(\mathrm{H}\)…
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