Hydroxy Compounds and Ethers Three Marks Questions

12th Standard EM

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Chemistry

Time : 00:45:00 Hrs
Total Marks : 24
    8 x 3 = 24
  1. What happens when 1-penyl ethanol is treated with acidified KMnO4.

  2. Write the mechanism of acid catalysed dehydration of ethanol to give ethane.

  3. How is phenol prepared form
    i) chloro benzene
    ii) isoprophy benzene

  4. Explain Kolbe’s reaction

  5. Writes the chemical equation for Williamson synthesis of 2-ethoxy – 2- methyl pentane  starting from ethanol and 2 – methyl pentan -2-ol

  6. Write the structure of the aldehyde, carboxylic acid and ester that yield 4- methylpent -2-en-1-ol.

  7. What is meta merism? Give the structure and IUPAC name of metamers of 2-methyoxy propane

  8. How are the following conversions effected
    i) benzylchloride to benzylalcohol
    ii) benzyalalcohol to benzoic acid

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