JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
\(120\) of an organic compound that contains only carbon and hydrogen gives \(330\, g\) of \(CO _{2}\) and \(270\, g\) of water on complete combustion. The percentage of carbon and hydrogen, respectively are ...... .
- A \(25\) and \(75\)
- B \(40\) and \(60\)
- C \(60\) and \(40\)
- D \(75\) and \(25\)
Answer & Solution
Correct Answer
(D) \(75\) and \(25\)
Step-by-step Solution
Detailed explanation
Given mass of organic compound \(=120\) mass of \(CO _{2}( g )=330\, g\) mass of \(H _{2} O (\ell)=270\, g\) mass of carbon \(= n _{ CO _{2}} \times 12\) \(=\frac{330}{44} \times 12=90 \,g\) \(\,\%\) of carbon \(=\frac{90}{120} \times 100=75 \,\%\) mass of hydrogen…
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