PYQ Vault

Day 199: JEE Mains Chemistry

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

  1. Question 1

    Equilibrium. Asked once: 2021 Paper 26 (same type asked 2 times) See all 2 of this type

    59
    The pHpH of ammonium phosphate solution, if pkapk_{a} of phosphoric acid and pkbpk_{b} of ammonium hydroxide are 5.23 and 4.75 respectively, is
  2. Question 2

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 26 Jul 2022 (same type asked 2 times) See all 2 of this type

    148
    Total number of isomers (including stereoisomers) obtain on monochlorination of methylcyclohexane is
  3. Question 3

    The d- and f-Block Elements. Asked once: 30 Jan 2024 (same type asked 2 times) See all 2 of this type

    130
    The orange colour of K2Cr2O7K_{2}Cr_{2}O_{7} and purple colour of KMnO4KMnO_{4} is due to

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  4. Question 4

    The p-Block Elements. Asked once: 30 Jan 2024 (same type asked 2 times) See all 2 of this type

    37
    Aluminium chloride in acidified aqueous solution forms an ion having geometry

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  5. Question 5

    Classification of Elements and Periodicity. Asked once: 25 Jul 2022 (same type asked 2 times) See all 2 of this type

    36
    The IUPAC nomenclature of an element with electronic configuration [Rn]5f146 d17 s2\lbrack Rn\rbrack 5f^{14}6{\text{ }d}^{1}7{\text{ }s}^{2} is:

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