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Day 440: JEE Mains Chemistry

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

  1. Question 1

    Chemical Thermodynamics. Asked once: 3 Apr 2025

    35
    Which of the following properties will change when the system containing solution 1 becomes solution 2? (Solution 1: 10 mol of solute X in 10 L of water. Solution 2: 1 L of solution 1 + 1 mol of solute X + 1 L of water.)

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  2. Question 2

    Classification of Elements and Periodicity. Asked once: 23 Jan 2025

    115
    Given below are the atomic numbers of some group 14 elements. The atomic number of the element with lowest melting point is :

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  3. Question 3

    Coordination Compounds. Asked once: 24 Jan 2023

    128
    Which of the following cannot be explained by crystal field theory?

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  4. Question 4

    Electrochemistry. Asked once: 6 Apr 2024

    50
    A conductivity cell with two electrodes (dark side) are half filled with infinitely dilute aqueous solution of a weak electrolyte. If volume is doubled by adding more water at constant temperature, the molar conductivity of the cell will -

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  5. Question 5

    Equilibrium. Asked once: 29 Jan 2024

    143
    The following concentrations were observed at 500 K500\text{ }K for the formation of NH3NH_{3} from N2N_{2} and H2H_{2}. At equilibrium: [N2]=2×10−2M,[H2]=3×10−2M\left\lbrack N_{2} \right\rbrack= 2 \times10^{- 2}M,\left\lbrack H_{2} \right\rbrack= 3 \times10^{- 2}M and [NH3]=1.5×10−2M\left\lbrack NH_{3} \right\rbrack= 1.5 \times10^{- 2}M. Equilibrium constant for the reaction is______