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Alcohols Phenols and Ethers question

2023 · 8 Apr · Shift 1 · Q12
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Alcohols Phenols and Ethers question

2023 · 8 Apr · Shift 1 · Q12

JEE MainChemistryAlcohols Phenols and EthersMCQ+4 / −1
The water gas on reacting with cobalt as a catalyst forms
  1. A
    Methanoic acid
  2. B
    Methanol
  3. C
    Methanal
  4. D
    Ethanol
View written solutionFree

Correct answer: B

  1. Identify water gas

    Water gas is a mixture of carbon monoxide and hydrogen: Water gas=CO+H2\text{Water gas} = \text{CO} + \text{H}_2Water gas=CO+H2​

  2. Reaction with cobalt catalyst

    In the presence of a cobalt catalyst, carbon monoxide and hydrogen undergo catalytic hydrogenation to form methanol.

    The reaction is: CO+2H2→catalystCoCH3OH\text{CO} + 2\text{H}_2 \xrightarrow[\text{catalyst}]{\text{Co}} \text{CH}_3\text{OH}CO+2H2​Cocatalyst​CH3​OH

  3. Match with the options

    • A: Methanoic acid (HCOOH)(\text{HCOOH})(HCOOH) — not formed here.
    • B: Methanol (CH3OH)(\text{CH}_3\text{OH})(CH3​OH) — correct.
    • C: Methanal (HCHO)(\text{HCHO})(HCHO) — not formed here.
    • D: Ethanol (C2H5OH)(\text{C}_2\text{H}_5\text{OH})(C2​H5​OH) — not formed here.

  4. Conclusion

    Therefore, the product formed is: Methanol\boxed{\text{Methanol}}Methanol​

So, the correct option is B.

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