PYQ Vault

Day 332: JEE Mains Chemistry

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

  1. Question 1

    The d- and f-Block Elements. Asked once: 25 Jul 2022 (same type asked 6 times) See all 6 of this type

    147
    The spin-only magnetic moment value of M3+M^{3 +} ion (in gaseous state) from the pairs Cr3+/Cr2+Cr^{3 +}/Cr^{2 +}, Mn3+/Mn2+,Fe3+/Fe2+Mn^{3 +}/Mn^{2 +},Fe^{3 +}/Fe^{2 +} and Co3+/Co2+Co^{3 +}/Co^{2 +} that has negative standard electrode potential, is ____ B.M. [Nearest integer]
  2. Question 2

    Classification of Elements and Periodicity. Asked once: 25 Jun 2022 (same type asked 6 times) See all 6 of this type

    126
    The correct order of electron gain enthalpies of ClCl, FF, TeTe and PoPo is

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  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 2021 Paper 22 (same type asked 5 times) See all 5 of this type

    47
    Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): A simple distillation can be used to separate a mixture of propanol and propanone. Reason (R): Two liquids with a difference of more than 20∘C20^{\circ}C in their boiling points can be separated by simple distillations. In the light of the above statements, choose the most appropriate answer from the options given below:

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  4. Question 4

    The d- and f-Block Elements. Asked once: 2021 Paper 13 (same type asked 5 times) See all 5 of this type

    37
    Which of the following pairs of ions is paramagnetic as well as coloured?

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  5. Question 5

    Alcohols, Phenols and Ethers. Asked once: 2021 Paper 1 (same type asked 5 times) See all 5 of this type

    41
    What is the major product formed by HIHI on reaction with

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