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 Multiple Choice QuestionsMultiple Choice Questions

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1.

Identify the compound 'D' in the following series of reactions.


2.

Benzene can be conveniently converted into n-propyl benzene by

  • Friedel-Craft alkylation with n-propyl chloride

  • Friedel-Craft acylation with propionyl chloride followed by Wolff-Kishner reduction

  • Friedel-Craft acylation with propionyl chloride followed by catalytic hydrogenation

  • Friedel-Craft acylation with propionyl chloride followed by reduction with LiAlH4


3.

At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% O2 by volume for complete combustion. After combustion the gases occupy 330 mL. Assuming that the water formed is in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is:

  • C3H8

  • C4H8

  • C4H12

  • C4H12

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4.

The isomerisation of 1-butyne to 2-butyne can be achieved by treatment with

  • hydrochloric acid

  • ammoniacal silver nitrate

  • ammoniacal cuprous chloride

  • ethanolic potassium hydroxide


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5.

The reduction of benzenediazonium chloride to phenyl hydrazine can be accomplished by

  • SnCl2, HCl

  • Na2SO3

  • CH3CH2OH

  • H3PO2


6.

The major product(s) obtained form the following reaction of 1 mole of hexadeuteriobenzene is/are


7.

Ozonolysis of an alkene produces only one dicarbonyl compound. The structure of the alkene is

  • H3C - CH = CH - CH3

  • CH3 - CH = CH - CH = CH3


8.

From the following compounds, choose the one which is not aromatic.


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9.

Identify X in the following sequence reactions


10.

The major products obtained during ozonolysis of 2, 3-dimethyl-1-butene and subsequent reductions with Zn and H2O are

  • methanoic acid and 2-methyl-2-butanone

  • methanal and 3-methyl-2-butanone

  • methanol and 2, 2 -dimethyl-3-butanone

  • methanoic acid and 2-methyl-3-butanone


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