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 Multiple Choice QuestionsMultiple Choice Questions

281.

A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60. The original compound is

  • an aldehyde

  • an acid

  • an alcohol

  • an ether


282.

An example for a saturated fatty acid, present in nature is

  • oleic acid

  • linoleic acid

  • linolenic acid

  • palmitic acid


283.

Identify the product Y in the following reaction sequence:

  • pentane

  • cyclobutane

  • cyclopentane

  • cyclopentanone


284.

Which of the following compound is expected to be optically active?

  • (CH3)2CHCHO

  • CH3CH2CH2CHO

  • CH3CH2CHBrCHO

  • CH3CH2CBr2CHO


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285.

In the reaction, R-X alcoholic KCN A dilute HCl B

The product B is :

  • alkyl chloride

  • aldehyde

  • carboxylic acid

  • ketone


286.

By heating phenol with chloroform in alkali, it is converted into :

  • salicylic acid

  • salicylaldehyde

  • anisole

  • phenyl benzoate


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287.

When a mixture of calcium benzoate and calcium acetate is dry distilled, the resulting compound is :

  • acetophenone

  • benzaldehyde

  • benzophenone

  • acetaldehyde


A.

acetophenone

            


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288.

The chemical name of anisole is

  • ethanoic acid

  • methoxy benzene

  • propanone

  • acetone


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289.

Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is called

  • Wurtz 's reaction

  • Williamson's reaction

  • Fittig's reaction

  • Etard's reaction


290.

The reagent used in Clemmensen's reduction is

  • conc. H2SO4

  • Zn-Hg conc. HCl

  • aq. KOH

  • alc. KOH


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