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Day 545: JEE Mains Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 1 Feb 2023

    59
    Number of isomeric compounds with molecular formula C9H10OC_{9}H_{10}O which (i)do not dissolve in NaOHNaOH (ii)do not dissolve in HClHCl. (iii) do not give orange precipitate with 2,4DNP (iv)on hydrogenation give identical compound with molecular formula C9H12OC_{9}H_{12}O is

  2. Question 2

    The p-Block Elements. Asked once: 14 Jun 2022

    41
    The most stable trihalide of nitrogen is:

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 2021 Paper 21

    44
    The major product of the following reaction, if it occurs by SN2S_{N}2 mechanism is:

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  4. Question 4

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 24 Jan 2023

    34
    ' RR ' formed in the following sequence of reactions is:

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  5. Question 5

    Amines. Asked once: 27 Jun 2022

    136
    Decarboxylation of all six possible forms of diaminobenzoic acids C6H3(NH2)2COOHC_{6}H_{3}\left( NH_{2} \right)_{2}COOH yields three products A, B and C. Three acids give a product ' AA ', two acids gives a product ' BB ' and one acid give a product ' CC '. The melting point of product ' CC ' is

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