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Day 16: JEE Mains Chemistry

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

  1. Question 1

    Organic Chemistry - Some Basic Principles and Techniques. This type asked 6 times: 28 Jul 2022, 15 Apr 2023, 29 Jan 2024, 31 Jan 2024, 4 Apr 2024, 29 Jan 2025. This one: 29 Jan 2025 See all 6 of this type

    103
    Given below are two statements : Statement (I) : In partition chromatography, stationary phase is thin film of liquid present in the inert support. Statement (II) : In paper chromatography, the material of paper acts as a stationary phase. In the light of the above statements, choose the correct answer from the options given below :

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  2. Question 2

    The d- and f-Block Elements. This type asked 6 times: 2021 Paper 3, 2021 Paper 24, 29 Jun 2022, 27 Jan 2024, 30 Jan 2024, 22 Jan 2025. This one: 22 Jan 2025 See all 6 of this type

    122
    Niobium ( Nb ) and ruthenium ( Ru ) have " x " and " yy " number of electrons in their respective 4d4d orbitals. The value of x+yx + y is ______\_\_\_\_\_\_

  3. Question 3

    The d- and f-Block Elements. This type asked 6 times: 25 Jun 2022, 25 Jul 2022, 29 Jan 2023, 10 Apr 2023, 1 Feb 2024, 5 Apr 2024. This one: 5 Apr 2024 See all 6 of this type

    137
    The number of ions from the following that have the ability to liberate hydrogen from a dilute acid is ________ . Ti2+,Cr2+Ti^{2 +},Cr^{2 +} and V2+V^{2 +}

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  4. Question 4

    Classification of Elements and Periodicity. This type asked 6 times: 2021 Paper 26, 25 Jun 2022, 25 Jan 2023, 1 Feb 2023, 6 Apr 2023, 31 Jan 2024. This one: 31 Jan 2024 See all 6 of this type

    40
    The correct sequence of electron gain enthalpy of the elements listed below is (A) ArAr (B) BrBr (C) F (D) SS Choose the most appropriate from the options given below:

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  5. Question 5

    The p-Block Elements. This type asked 6 times: 26 Jun 2022, 27 Jun 2022, 29 Jun 2022, 28 Jul 2022, 25 Jan 2023, 11 Apr 2023. This one: 11 Apr 2023 See all 6 of this type

    132
    One mole of P4P_{4} reacts with 8 moles of SOCl2SOCl_{2} to give 4 moles of A,xA,x mole of SO2SO_{2} and 2 moles of B. A, B and xx respectively are

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