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Hydroxy Compounds and Ethers Two Marks Questions

12th Standard

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Chemistry

Time : 00:30:00 Hrs
Total Marks : 8
    8 x 2 = 16
  1. Identify the product (s) is / are formed when 1 – methoxy propane is heated with excess HI. Name the mechanism involved in the reaction.

  2. Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI.

  3. Suggest a suitable reagent to prepare secondary alcohol with identical group using Grignard reagent.

  4. What is the major product obtained when two moles of ethyl magnesium bromide is treated with methyl benzoate followed by acid hydrolysis.

  5. Predict the major product, when 2-methyl but -2-ene is converted into an alcohol in each of the following methods.
    (i) Acid catalysed hydration
    (ii) Hydroboration
    (iii) Hydroxylation using Baeyer's reagent

  6. Arrange the following in the increasing order of their boiling point and give a reason for your ordering
    (i) Butan – 2- ol, Butan -1-ol, 2 –methylpropan -2-ol
    (ii) Propan -1-ol, propan -1,2,3-triol, propan -1,3 – diol, propan -2-ol

  7. Can we use nucelophiles such as NH3,CH3- for the Nucleophilic substitution of alcohols

  8. Is it possible to oxidise t – butyl alcohol using acidified dichromate to form a carbonyl compound.

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