JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
The complete combustion of \(0.492\, g\) of an organic compound containing \('C', 'H'\) and \('O'\) gives \(0.793\, g\) of \(CO _{2}\) and \(0.442\,g\) of \(H _{2} O\). The percentage of oxygen composition in the organic compound is .... (nearest integer)
- A \(64\)
- B \(92\)
- C \(50\)
- D \(46\)
Answer & Solution
Correct Answer
(D) \(46\)
Step-by-step Solution
Detailed explanation
Mole of \(CO _{2}=\) Moles of \(C =\frac{0.793}{44}\) Weight of ' \(C\) ' \(=\frac{0.793}{44} \times 12=0.216 \,gm\) Moles of ' \(H ^{\prime}=\frac{0.442}{18} \times 2\) Weight of ' \(H ^{\prime}=\frac{0.442}{18} \times 2 \times 1=0.049 \,gm\) \(\therefore\) Weight of ' \(O\) '…
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