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Day 128: JEE Mains Chemistry

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

  1. Question 1

    Electrochemistry. Asked once: 2 Apr 2025 (same type asked 5 times) See all 5 of this type

    122
    0.2%(w/v)0.2\%(w/v) solution of NaOH is measured to have resistivity 870.0 mΩ m870.0\text{ }m\Omega\text{ }m. The molar conductivity of the solution will be ____\_\_\_\_ ×102 mS dm2 mol−1\times 10^{2}\ mS\ dm^{2}\ mol^{-1}. (Nearest integer)

  2. Question 2

    Solutions. Asked once: 13 Apr 2023 (same type asked 5 times) See all 5 of this type

    52
    Solution of 12 g12\text{ }g of non - electrolyte (A) prepared by dissolving it in 1000 mL1000\text{ }mL of water exerts the same osmotic pressure as that of 0.05M0.05M glucose solution at the same temperature. The empirical formula of AA is CH2OCH_{2}O. The molecular mass of AA is _______g. (Nearest integer)

  3. Question 3

    Equilibrium. Asked once: 2 Apr 2026 S1 (same type asked 5 times) See all 5 of this type

    31
    The solubility product constants of Ag2CrO4Ag_{2}CrO_{4} and AgBr are 32x and 4y respectively at 298 K . The value of ( molarity of Ag2CrO4 molarity of AgBr)\left( \frac{\text{~molarity of~}Ag_{2}CrO_{4}}{\text{~molarity of~}AgBr} \right) can be expressed as :

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  4. Question 4

    Structure of Atom. Asked once: 9 Apr 2024 (same type asked 5 times) See all 5 of this type

    45
    Compare the energies of following sets of quantum numbers for multielectron system. (A) n=4,l=1n = 4,l = 1 (B) n=4,l=2n = 4,l = 2 (C) n=3,l=1n = 3,l = 1 (D) n=3,l=2n = 3,l = 2 (E) n=4,l=0n = 4,l = 0 Choose the correct answer from the options given below:

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  5. Question 5

    The d- and f-Block Elements. Asked once: 9 Apr 2024 (same type asked 5 times) See all 5 of this type

    140
    The electronic configuration of Einsteinium is : (Given atomic number of Einsteinium =99= 99 )

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