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Day 250: JEE Mains Chemistry

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

  1. Question 1

    Biomolecules. Asked once: 25 Jun 2022 (same type asked 4 times) See all 4 of this type

    125
    Match List I with List II. List I List II A. Zymase I. Stomach B. Diastase II. Yeast C. Urease III. Malt D. Pepsin IV. Soya bean Choose the correct answer from the options given below:

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  2. Question 2

    The d- and f-Block Elements. Asked once: 2021 Paper 20 (same type asked 4 times) See all 4 of this type

    41
    Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloidal species. It is:

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  3. Question 3

    Biomolecules. Asked once: 14 Jun 2022 (same type asked 4 times) See all 4 of this type

    150
    In alanylglycylleucylalanylvaline, the number of peptide linkages is

  4. Question 4

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 2021 Paper 17 (same type asked 4 times) See all 4 of this type

    58
    The dihedral angle in staggered form of Newman projection of 1,1,1-trichloroethane is ____ degrees. (Round off to the nearest integer)

  5. Question 5

    Some Basic Concepts of Chemistry. Asked once: 26 Jun 2022 (same type asked 4 times) See all 4 of this type

    32
    An evacuated glass vessel weighs 40.0 g40.0\text{ }g when empty, 135.0 g135.0\text{ }g when filled with a liquid of density 0.95 g mL−10.95\text{ }g{\text{ }mL}^{- 1} and 40.5 g40.5\text{ }g when filled with an ideal gas at 0.82 atm0.82\text{ }atm at 250 K250\text{ }K. The molar mass of the gas in gmol−1gmol^{- 1} is: (Given: R=0.082 L atm K−1 mol−1R = 0.082\text{ }L\text{ }atm{\text{ }K}^{- 1}{\text{ }mol}^{- 1} )

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