Q115 / 270 · NDA 2017 (Phase 2) · General Ability

How much $\mathrm{CO}_2$ is produced on heating of 1 kg of carbon?

  • Correct answer
    A
    $\frac{11}{3} \mathrm{~kg}$
  • B
    $\frac{3}{11} \mathrm{~kg}$
  • C
    $\frac{4}{3} \mathrm{~kg}$
  • D
    $\frac{3}{4} \mathrm{~kg}$

Solution

$\mathrm{C}+\mathrm{O}_2=\mathrm{CO}_2$ $12+32=44$ From 12 kg carbon $44 \mathrm{~kg} \mathrm{CO}_2$ is produced. From 1 kg carbon $44 \div 12=3.66 \mathrm{~kg}$ carbon di oxide is produced. So, correct answer is $11 / 3$

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

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