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Day 365: JEE Mains Chemistry

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

  1. Question 1

    Biomolecules. Asked once: 2021 Paper 9 (same type asked 7 times) See all 7 of this type

    35
    A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A is-

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  2. Question 2

    Chemical Kinetics. Asked once: 2021 Paper 22 (same type asked 7 times) See all 7 of this type

    56
    For a first order reaction, the ratio of the time for 75%75\% completion of a reaction to the time for 50%50\% completion is ____\_\_\_\_. (Integer answer)

  3. Question 3

    Amines. Asked once: 27 Jan 2024 (same type asked 7 times) See all 7 of this type

    149
    9.3 g9.3\text{ }g of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is 100%100\% completed is ____\_\_\_\_ ×10−1 g\times10^{- 1}\text{ }g. (Given molar mass in gmol−1 N:14,O:16,Cgmol^{- 1}\text{ }N:14,O:16,C : 12,H:1)12,H:1)

  4. Question 4

    Hydrocarbons. Asked once: 28 Jul 2022 (same type asked 7 times) See all 7 of this type

    133
    Arrange the following in increasing order of reactivity towards nitration A. p-xylene B. bromobenzene C. mesitylene DD, nitrobenzene E. benzene Choose the correct answer from the options given below

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  5. Question 5

    Biomolecules. Asked once: 2021 Paper 3 (same type asked 7 times) See all 7 of this type

    44
    Which glycosidic linkage between galactose and glucose is present in lactose?

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