Important Questions of Haloalkanes and Haloarenes Chemistry | Zigya

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31.

Alkyl halides react with dialkyl copper reagents to give

  • alkenes

  • alkyl copper halides

  • alkanes

  • alkanes

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32.

Elimination of bromine from 2-bromobutane results in the formation of-

  • equimolar mixture of 1 and 2-butene

  • predominantly 2-butene

  • predominantly 1-butene

  • predominantly 1-butene

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33.

Which one of the following has the minimum boiling point?

  • n-butane

  • isobutane

  • 1- butene

  • 1- butene

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34.

Which of the following will have meso-isomer also?

  • 2- chlorobutane

  • 2- hydroxyopanoic acid

  • 2,3 – dichloropentane

  • 2,3 – dichloropentane

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35.

Rate of the reaction



is fastest when Z is

  • Cl

  • OCOCH3

  • OC2H5

  • OC2H5

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36.

The compound formed on heating chlorobenzene with chloral in the presence concentrated sulphuric acid is

  • gammexene

  • hexachloroethane

  • Freon

  • Freon

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37.

The major product formed in the following reaction is:


38.

For the reaction below, the structure of the product Q is


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39.

The reaction sequence given below given product R.

The structure of the product R is


40.

The major product of the above reaction is-


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