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Day 44: JEE Mains Chemistry

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

  1. Question 1

    The d- and f-Block Elements. This type asked 4 times: 14 Jun 2022, 24 Jan 2023, 29 Jan 2024, 1 Feb 2024. This one: 1 Feb 2024 See all 4 of this type

    140
    Given below are two statements: Statement (I): Dimethyl glyoxime forms a sixmembered covalent chelate when treated with NiCl2NiCl_{2} solution in presence of NH4OHNH_{4}OH. Statement (II): Prussian blue precipitate contains iron both in (+2)( + 2) and (+3)( + 3) oxidation states. In the light of the above statements, choose the most appropriate answer from the options given below:

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  2. Question 2

    Chemical Bonding and Molecular Structure. This type asked 4 times: 29 Jun 2022, 26 Jul 2022, 24 Jan 2023, 31 Jan 2024. This one: 31 Jan 2024 See all 4 of this type

    134
    Which of the following is least ionic?

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  3. Question 3

    Alcohols, Phenols and Ethers. This type asked 4 times: 2021 Paper 1, 2021 Paper 19, 8 Apr 2023, 27 Jan 2024. This one: 27 Jan 2024 See all 4 of this type

    126
    Phenolic group can be identified by a positive:

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  4. Question 4

    Some Basic Concepts of Chemistry. This type asked 4 times: 1 Feb 2023, 6 Apr 2023, 8 Apr 2023, 27 Jan 2024. This one: 27 Jan 2024 See all 4 of this type

    60
    From the given list, the number of compounds with +4 oxidation state of Sulphur _____ .
    SO3,H2SO3,SOCl2,SF4,BaSO4,H2 S2O7SO_{3},H_{2}SO_{3},SOCl_{2},SF_{4},BaSO_{4},H_{2}{\text{ }S}_{2}O_{7}

  5. Question 5

    Biomolecules. This type asked 4 times: 2021 Paper 8, 25 Jun 2022, 26 Jun 2022, 6 Apr 2023. This one: 6 Apr 2023 See all 4 of this type

    36
    Match List I with List II.
    List I (Enzymatic reaction)List II (Enzyme)
    ASucrose →\rightarrow Glucose and FructoseI.Zymase
    BGlucose →\rightarrow ethyl alcohol and CO2CO_{2}II.Pepsin
    CStarch →\rightarrow MaltoseIII.Invertase
    DProteins →\rightarrow Amino acidsIV.Diastase
    Choose the correct answer from the options given below:

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