Q16 / 160 · AP EAMCET 2016 · Chemistry

In Dumas method, $0.3 \mathrm{~g}$ of an organic compound gave $45 \mathrm{~mL}$ of nitrogen at STP. The percentage of nitrogen is

  • A
    $16.9$
  • Correct answer
    B
    $18.7$
  • C
    $23.2$
  • D
    $29.6$

Solution

In Dumes method, $\%$ of nitrogen $=\frac{28 \mathrm{~V} \times 100}{22400 \times W}=\frac{28 \times 45 \times 100}{22400 \times 0.3}=18.75$

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

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