Q13 / 160 · AP EAMCET 2024 (21 May Shift 1) · Chemistry

The equation that represents 'coal gasification' is

  • A
    $\mathrm{CO}(\mathrm{g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow[\text { catalyst }]{673 \mathrm{~K}} \mathrm{CO}_2(\mathrm{~g})+\mathrm{H}_2(\mathrm{~g})$
  • Correct answer
    B
    $C (s) +\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow{1273 \mathrm{~K}} \mathrm{CO}(\mathrm{g})+\mathrm{H}_2(\mathrm{~g})$
  • C
    $2 \mathrm{C}(\mathrm{s})+\mathrm{O}_2(\mathrm{~g})+4 \mathrm{~N}_2(\mathrm{~g}) \xrightarrow{1273 \mathrm{~K}} 2 \mathrm{CO}(\mathrm{g})+4 \mathrm{~N}_2(\mathrm{~g})$
  • D
    $\mathrm{CH}_4(\mathrm{~g})^{\prime}+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow{1270 \mathrm{~K}} \mathrm{CO}(\mathrm{g})+3 \mathrm{H}_2(\mathrm{~g})$

Solution

Coal gasification is the process of producing coal gas, a type of syn gas (mixture of carbon monocxide $(\mathrm{CO})$ and Hydrogen $\left(\mathrm{H}_2\right)$ from coal. $3 \mathrm{C}\left(\text { i.e., coal) }+\mathrm{H}_2 \mathrm{O}+\mathrm{O}_2 \rightarrow \mathrm{H}_2+3 \mathrm{CO}_2\right.$

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

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