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Day 314: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 25 Jun 2022 (same type asked 4 times) See all 4 of this type

    55
    1 L1\text{ }L aqueous solution of H2SO4H_{2}SO_{4} contains 0.02 m mol0.02\text{ }m\text{ }mol of H2SO4H_{2}SO_{4}. 50%50\% of this solution is diluted with deionized water to give 1 L1\text{ }L solution (a). In solution (a), 0.01 m mol0.01\text{ }m\text{ }mol of H2SO4H_{2}SO_{4} are added. Total mm mols of H2SO4H_{2}SO_{4} in the final solution is ____ ×10−3 m mol\times10^{- 3}\text{ }m\text{ }mol.

  2. Question 2

    Organic Reaction Mechanisms. Asked once: 2021 Paper 26 (same type asked 4 times) See all 4 of this type

    39
    Ceric ammonium nitrate and CHCl3CHCl_{3} + alc. KOHKOH are used for the identification of functional groups present in ______ and ______ respectively.

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  3. Question 3

    Structure of Atom. Asked once: 2021 Paper 26 (same type asked 4 times) See all 4 of this type

    55
    A ball weighing 10 g10\text{ }g is moving with a velocity of 90 ms−190{\text{ }ms}^{- 1}. If the uncertainty in its velocity is 5%5\%, then the uncertainty in its position is x×10−33 mx \times10^{- 33}\text{ }m. (Rounded off to the nearest integer) [Given h=6.63×10−34Jsh = 6.63 \times10^{- 34}Js]

  4. Question 4

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 29 Jun 2022 (same type asked 4 times) See all 4 of this type

    59
    Observe structures of the following compounds The total number of structures/compounds which possess asymmetric carbon atoms is

  5. Question 5

    The p-Block Elements. Asked once: 2021 Paper 26 (same type asked 4 times) See all 4 of this type

    40
    Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: In TlI3TlI_{3}, isomorphous to CsI3CsI_{3}, the metal is present in +1+1 oxidation state. Reason R: Tl metal has fourteen ff electrons in its electronic configuration. In the light of the above statements, choose the most appropriate answer from the options given below:

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