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Organic Compounds Containing Nitrogen Test - 6

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Organic Compounds Containing Nitrogen Test - 6
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  • Question 1
    1 / -0

    Which of the following amines cannot be prepared by Gabriel phthalimide reaction?

    Solution

    Since aryl halides do not undergo nucleophilic substitution reactions with potassium phthalimide, so aryl amines (aniline in present case) cannot be prepared.

     

  • Question 2
    1 / -0

    In (CH3)3N, the state of hybridization of N-atom and the spatial rearrangement of methyl groups around it respectively are

    Solution

    sp3 (hybridization) and pyramidal (spatial arrangement)

     

  • Question 3
    1 / -0

    The order of basic strength among the following amines in vapour phase as well as in benzene solution is

    Solution

    In non-aqueous solvents, i.e. benzene, chlorobezene etc, the base strength increases as the magnitude of +I effect increases, i.e.
    (CH3)3N > (CH3)2NH > CH3NH2.

     

  • Question 4
    1 / -0

    Treatment of nitrobenzene with acetyl chloride in the presence of anhydrous AlCl3 gives

    Solution

    Nitro group deactivates the benzene ring to such extent that nitrobenzene does not undergo Friedel Crafts reaction.

     

  • Question 5
    1 / -0

    Which of the following will give N2 gas on treatment with nitrous acid?

    Solution

    All the amines listed in the question are aliphatic primary amines and aliphatic primary amines react with HNO2 to give N2 gas. Therefore.

     

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