AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
\(0.12 \mathrm{~g}\) of an organic compound ' \(X\) ' containing phosphorus on reacting with magnesia mixture gave \(0.22 \mathrm{~g}\) of magnesium pyrophosphate \(\left(\mathrm{Mg}_2 \mathrm{P}_2 \mathrm{O}_7\right)\). The percentage of phosphorus in the compound ' \(X\) ' is
- A \(45.30 \%\)
- B \(28.70 \%\)
- C \(64.25 \%\)
- D \(51.20 \%\)
Answer & Solution
Correct Answer
(D) \(51.20 \%\)
Step-by-step Solution
Detailed explanation
Estimation of phosphorus in organic compound is down by using magnesia mixture. It uses the working formula. \(\mathrm{P} \%=\frac{62}{222} \times \frac{w_1}{w} \times 100=\frac{62}{222} \times \frac{0.22}{0.12} \times 100=51.20 \%\)
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