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 Multiple Choice QuestionsMultiple Choice Questions

1.

 Phenol (ii) CO2/140o C(i) NaOHA H+/H2O BAc2OC

In the above reaction, end product 'C' is

  • Salicylaldehyde

  • Salicyclic acid

  • Phenylacetate

  • Aspirin


2.

Methanol and ethanol are miscible in water due to

  • covalent character

  • hydrogen bonding character

  • oxygen bonding character

  • None of the above


3.

When 23 g sodium metal reacts with methyl alcohol , it will form :

  • 1 moles of H2

  • 2 mole of H2

  • 0.5 mole of H2

  • All of the above


4.

Which one of the following forms propanenitrile as the major product?

  • Propyl bromide + alcoholic KCN

  • Ethyl bromide + alcoholic KCN

  • Ethyl bromide + alcoholic AgCN

  • Propyl bromide + alcoholic AgCN


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5.

The reaction


Can be classified as

  • Alcohol formation reaction

  • Dehydration reaction

  • Williamson alcohol synthesis reaction

  • Williamson alcohol synthesis reaction

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6.

The reaction,


is called,

  • Williamson synthesis

  • Williamson continuous etherification process

  • Etard reaction

  • Gattermam -Koch reaction


A.

Williamson synthesis

The reaction of alkyl halides with sodium alkoxide or sodium phenoxide to form ethers is called Williamson synthesis. Here, in this reaction alkyl halide should be primary and alkoxide e.g. should be bulkier as shown below,

R-X     +         R'-ONa       --->         R-O-R' + NaX
alkyl halide      sodium alkoxide          ether

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7.

Which of the following will not be soluble in sodium hydrogen carbonate ?

  • 2,4,6 trinitrophenol

  • Benzoic acid

  • o-nitrophenol

  • o-nitrophenol

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8.

Among the following sets of reactants which one produces anisole?

  • CH3CHO;RMgX

  • C6H5OH;NaOH; CH3I

  • C6H5OH;neutral FeCl3

  • C6H5OH;neutral FeCl3

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9.

Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI?

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10.

In the following reaction,

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