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Day 497: JEE Mains Chemistry

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

  1. Question 1

    The d- and f-Block Elements. Asked once: 2021 Paper 22

    53
    Consider the sulphides HgS,PbS,CuS,Sb2 S3HgS,PbS,CuS,Sb_{2}{\text{ }S}_{3}, As2 S3As_{2}{\text{ }S}_{3} and CdS. Number of these sulphides soluble in 50%HNO350\%HNO_{3} is

  2. Question 2

    The p-Block Elements. Asked once: 13 Apr 2023

    139
    The covalency and oxidation state respectively of boron in [BF4]−\left\lbrack BF_{4} \right\rbrack^{-}, are

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 29 Jan 2023

    130
    Find out the major product when 1-(1-methylcyclopentyl)ethan-1-ol is treated with H3O+H_{3}O^{+}.

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  4. Question 4

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 29 Jan 2024

    47
    The final product A formed in the following multistep reaction sequence is

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  5. Question 5

    Amines. Asked once: 12 Apr 2023

    50
    The major product ' PP ' formed in the following sequence of reactions is 'P' (Major Product)

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