Q90 / 180 · AIIMS 2001 · Chemistry

If $0.189 \mathrm{~g}$ of a chlorine containing organic compound gave $0.287 \mathrm{~g}$ of silver chloride, then the percentage of chlorine in the organic compound is

  • A
    35.47
  • B
    35.57
  • Correct answer
    C
    37.57
  • D
    45.37

Solution

Organic compound $\rightarrow$ Comp. $+\mathrm{AgCl}$ $0.189 \mathrm{~g} \quad 0.287 \mathrm{~g}$ Percentage of chlorine in $\mathrm{AgCl}=\frac{35.5}{143.35} \times 100$ $=24.76 \%$ Weight of chlorine in $0.287 \mathrm{~g}$ $$ \begin{aligned} \mathrm{g} \mathrm{AgCl} & =\frac{24.76}{100} \times 0.287 \\ & =.07106 \mathrm{~g} \end{aligned} $$ Percentage of chlorine in 0.189 $$ \begin{aligned} \mathrm{g} & =\frac{.07106}{0.189} \times 100 \\ & =37.598 \% \end{aligned} $$

Hence, the correct answer is option: 'C'.

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