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Day 154: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 8 Apr 2023 (same type asked 4 times) See all 4 of this type

    147
    The sum of oxidation state of the metals in Fe(CO)5,VO2+Fe(CO)_{5},VO^{2 +} and WO3WO_{3} is___

  2. Question 2

    Biomolecules. Asked once: 26 Jun 2022 (same type asked 4 times) See all 4 of this type

    122
    Match List I with List II.
    List I (Enzyme)List II (Conversion of)
    A.InvertaseI.Starch into maltose
    B.ZymaseII.Maltose into glucose
    C.DiastaseIII.Glucose into ethanol
    D.MaltaseIV.Cane sugar into glucose
    Choose the most appropriate answer from the options given below:

    Tap an option to check your answer.

  3. Question 3

    The d- and f-Block Elements. Asked once: 2021 Paper 24 (same type asked 4 times) See all 4 of this type

    47
    The potassium ferrocyanide solution gives a Prussian blue colour, when added to :

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  4. Question 4

    Biomolecules. Asked once: 29 Jul 2022 (same type asked 4 times) See all 4 of this type

    58
    In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids) - (number of peptide bonds) is___

  5. Question 5

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 25 Jun 2022 (same type asked 4 times) See all 4 of this type

    42
    In the following structures, which one is having staggered conformation with maximum dihedral angle?

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