Compounds Containing Oxygen

1

Bakelite is obtained from phenol by reaction with

  1. CH3CHO
  2. HCHO
  3. CH3COCH3
  4. (CH2OH)2
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2

For which of the following parameters the structural isomers C2H5OH and CH3OCH3 would be expected to have the same values? (Assume ideal behavior)

  1. Boiling points
  2. Vapor pressure at the same temperature
  3. Gaseous densities at the same temperature and pressure
  4. Heat of vaporization
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3

One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is

  1. 1-butene
  2. 2-butene
  3. propene
  4. ethene
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4

Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of

  1. an acetylenic triple bond
  2. a vinyl group
  3. two ethylenic double bonds
  4. an isopropyl group
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5

During dehydration of alcohols to alkenes by heating with concentrated H2SO4 the initiation step is

  1. protonation of alcohol molecule
  2. formation of an ester
  3. formation of carbocation
  4. elimination of water
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6

Among the following compounds which can be dehydrated very easily?

  1. CH3CH2CH2CH2CH2OH
  2. CH3CH2CH2CHOHCH3
  3. CH3CH2CHCH3CH2CH2OH
  4. CH3CH2CH3COHCH2CH3
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7

Phenyl magnesium bromide reacts with methanol to give

  1. a mixture of benzene and Mg(OMe)Br
  2. a mixture of anisole and Mg(OH)Br
  3. a mixture of phenol and Mg(Me)Br
  4. a mixture of toluene and Mg(OH)Br
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8

The IUPAC name of CH3COCH(CH3)2 is

  1. isopropylmethyl ketone
  2. 4-­methylisopropyl ketone
  3. 2-­methyl­-3-­butanone
  4. 3-­methyl-­2-­butanone
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9

Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid?

  1. Butanol
  2. Phenol
  3. Benzaldehyde
  4. Benzoic acid
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10

Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?

  1. Acetic acid
  2. Butan­-2-­one
  3. Ethyl acetate
  4. Acetamide
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