PYQ Vault

Day 527: JEE Mains Chemistry

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

  1. Question 1

    Structure of Atom. Asked once: 2021 Paper 16

    27
    S1: Rutherford's gold foil experiment didn't explain hydrogen spectrum. S2: Bohr's model contradicted Heisenberg's uncertainty principle.

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  2. Question 2

    The p-Block Elements. Asked once: 28 Jul 2022

    39
    Match List-I with List-II: match the gas evolved during each reaction.
    List-IList-II
    (A)(NH4)2Cr2O7→Δ\mathrm{(NH_4)_2Cr_2O_7 \xrightarrow{\Delta}}(I)H2\mathrm{H_2}
    (B)KMnO4+HCl→\mathrm{KMnO_4 + HCl \rightarrow}(II)N2\mathrm{N_2}
    (C)Al+NaOH+H2O→\mathrm{Al + NaOH + H_2O \rightarrow}(III)O2\mathrm{O_2}
    (D)NaNO3→Δ\mathrm{NaNO_3 \xrightarrow{\Delta}}(IV)Cl2\mathrm{Cl_2}
    Choose the correct answer from the options given below:

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 27 Jun 2022

    135
    Match List I with List II Choose the correct answer from the options given below:

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  4. Question 4

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 6 Apr 2023

    131
    Find out the major product from the following reaction

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  5. Question 5

    Amines. Asked once: 29 Jan 2023

    49
    The major product ' PP ' for the following sequence of reactions is

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