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Identify an amine from its Hinsberg test and other test results

This type of question, asked 5 times: 2021 Paper 10, 2021 Paper 25, 31 Jan 2023, 10 Apr 2023, 6 Apr 2024. All 5 questions below, oldest first.

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  1. Question 1

    2021 Paper 10

    37
    An organic compound "A" on treatment with benzene sulphonyl chloride gives compound BB. BB is soluble in dil. NaOHNaOH solution. Compound AA is :

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  2. Question 2

    2021 Paper 25

    36
    An amine on reaction with benzene sulphonyl chloride produces a compound insoluble in alkaline solution. This amine can be prepared by ammonolysis of ethyl chloride. The correct structure of amine is:

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  3. Question 3

    31 Jan 2023

    133
    An organic compound [A](C4H11 N)\lbrack A\rbrack\left( C_{4}H_{11}\text{ }N \right), shows optical activity and gives N2N_{2} gas on treatment with HNO2HNO_{2}. The compound [A] reacts with PhSO2ClPhSO_{2}Cl producing a compound which is soluble in KOHKOH.

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  4. Question 4

    10 Apr 2023

    36
    Isomeric amines with molecular formula C8H11 NC_{8}H_{11}\text{ }N give the following tests Isomer (P) ⇒\Rightarrow Can be prepared by Gabriel phthalimide synthesis Isomer (Q)⇒(Q) \Rightarrow Reacts with Hinsberg's reagent to give solid insoluble in NaOHNaOH Isomer (R)⇒(R) \Rightarrow Reacts with HONO followed by β\beta-naphthol in NaOHNaOH to give red dye. Isomers (P), (Q) and (R) respectively are

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  5. Question 5

    6 Apr 2024

    141
    An amine (X)(X) is prepared by ammonolysis of benzyl chloride. On adding p-toluenesulphonyl chloride to it the solution remains clear. Molar mass of the amine (X)(X) formed is _____ gmol−1gmol^{- 1}. (Given molar mass in gmol−1C:12,H:1,O:16, N:14gmol^{- 1}C:12,H:1,O:16,\text{ }N:14 )