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Day 466: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 25 Jul 2022

    31
    SO2Cl2SO_{2}Cl_{2} on reaction with excess of water results into acidic mixture
    SO2Cl2+2H2O→H2SO4+2HClSO_{2}Cl_{2}+ 2H_{2}O \rightarrow H_{2}SO_{4}+ 2HCl
    16 moles of NaOHNaOH is required for the complete neutralisation of the resultant acidic mixture. The number of moles of SO2Cl2SO_{2}Cl_{2} used is:

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  2. Question 2

    Structure of Atom. Asked once: 27 Jan 2024

    141
    Total number of ions from the following with noble gas configuration is ____ Sr2+ (Z=38)\mathrm{Sr^{2+}}\ (Z = 38), Cs+ (Z=55)\mathrm{Cs^{+}}\ (Z = 55), La2+ (Z=57)\mathrm{La^{2+}}\ (Z = 57), Pb2+ (Z=82)\mathrm{Pb^{2+}}\ (Z = 82), Yb2+ (Z=70)\mathrm{Yb^{2+}}\ (Z = 70) and Fe2+ (Z=26)\mathrm{Fe^{2+}}\ (Z = 26)

  3. Question 3

    The d- and f-Block Elements. Asked once: 29 Jan 2023

    128
    The set of correct statements is: (i) Manganese exhibits +7 oxidation state in its oxide. (ii) Ruthenium and Osmium exhibit +8 oxidation in their oxides. (iii) Sc shows +4 oxidation state which is oxidizing in nature. (iv) CrCr shows oxidising nature in +6 oxidation state.

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  4. Question 4

    The p-Block Elements. Asked once: 31 Jan 2024

    34
    The compound that is white in color is

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  5. Question 5

    Alcohols, Phenols and Ethers. Asked once: 31 Jan 2024

    54
    The product of the following reaction is PP. The number of hydroxyl groups present in the product PP is _____ .