PYQ Vault

Day 499: JEE Mains Chemistry

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

  1. Question 1

    Electrochemistry. Asked once: 25 Jul 2022

    124
    The molar conductivity of a conductivity cell filled with 10 moles of 20 mLNaCl20\text{ }mLNaCl solution is Λm1\Lambda_{m1} and that of 20 moles another identical cell having 80 mLNaClmLNaCl solution is Λm2\Lambda_{m2}, The conductivities exhibited by these two cells are same. The relationship between Λm2\Lambda_{m2} and Λm1\Lambda_{m1} is

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  2. Question 2

    Haloalkanes and Haloarenes. Asked once: 15 Apr 2023

    48
    The major product formed in the Friedel-Craft acylation of chlorobenzene is.

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  3. Question 3

    Hydrocarbons. Asked once: 22 Jan 2025

    36
    Given below are two statements : Statement I : One mole of propyne reacts with excess of sodium to liberate half a mole of H2H_{2} gas. Statement II : Four g of propyne reacts with NaNH2NaNH_{2} to liberate NH3NH_{3} gas which occupies 224 mL at STP. In the light of the above statements, choose the most appropriate answer from the options given below:

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  4. Question 4

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 4 Apr 2024

    33
    Match List -I with List II: Choose the correct answer from the options given below:

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  5. Question 5

    Organic Reaction Mechanisms. Asked once: 25 Jul 2022

    60
    In the given reaction (Where Et is −C2H5-C_{2}H_{5} ) The number of chiral carbon/s in product AA is