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Day 516: JEE Mains Chemistry

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

  1. Question 1

    The d- and f-Block Elements. Asked once: 2021 Paper 6

    48
    Arrange the following metal complex/ compounds in the increasing order of spin only magnetic moment. Presume all the three, high spin system. (Atomic numbers Ce=58,Gd=64Ce = 58,Gd = 64 and Eu=63Eu = 63.) (A) (NH4)2[Ce(NO3)6]\left( NH_{4} \right)_{2}\left\lbrack Ce\left( NO_{3} \right)_{6} \right\rbrack (B) Gd(NO3)3Gd\left( NO_{3} \right)_{3} and (C) Eu(NO3)3Eu\left( NO_{3} \right)_{3}.

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  2. Question 2

    The p-Block Elements. Asked once: 30 Jan 2023

    128
    Boric acid is solid, whereas BF3BF_{3} is gas at room temperature because of

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 25 Jul 2022

    148
    A sample of 4.5 mg4.5\ mg of an unknown monohydric alcohol, R−OHR-OH was added to methylmagnesium iodide. A gas is evolved and is collected and its volume measured to be 3.1 mL3.1\text{ }mL. The molecular weight of the unknown alcohol is ____ g/molg/mol. [Nearest integer]

  4. Question 4

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 11 Apr 2023

    123
    The major product formed in the following reaction is: (A) (B) (C) (D) Choose the correct answer from the options given below:

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  5. Question 5

    Amines. Asked once: 6 Apr 2023

    42
    The major products AA and BB from the following reactions are:

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