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Day 307: MHT-CET Chemistry

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

  1. Question 1

    Chemical Thermodynamics and Energetics. Asked once: 14 May 2024 S1 (same type asked 4 times) See all 4 of this type

    88
    Calculate ΔH\Delta H for the following reaction at 25∘C25^\circ\text{C}. NH2CN(g)+32O2(g)→N2(g)+CO2(g)+H2O(l)\text{NH}_2\text{CN}_{(g)}+\dfrac{3}{2}\text{O}_{2(g)}\rightarrow\text{N}_{2(g)}+\text{CO}_{2(g)}+\text{H}_2\text{O}_{(l)} (ΔU=−740.5 kJ\Delta U=-740.5\,\text{kJ}, R=8.314 J K−1mol−1R=8.314\,\text{J K}^{-1}\text{mol}^{-1})

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  2. Question 2

    Ionic Equilibria. Asked once: 14 May 2024 S1 (same type asked 4 times) See all 4 of this type

    69
    Which activity from following is exhibited by Lewis base according to definition?

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  3. Question 3

    Chemical Thermodynamics and Energetics. Asked once: 12 May 2024 S1 (same type asked 4 times) See all 4 of this type

    69
    Calculate amount of methane formed by liberation of 149.6 kJ of heat using following equation: C(s)+2H2(g)→CH4(g) ΔH=−74.8 kJ/mol\text{C}_{(s)}+2\text{H}_{2(g)}\rightarrow\text{CH}_{4(g)}\,\Delta H=-74.8\,\text{kJ/mol}

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  4. Question 4

    Electrochemistry. Asked once: 11 May 2023 S1 (same type asked 4 times) See all 4 of this type

    75
    When fused NaCl undergoes electrolysis the product formed at cathode is

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  5. Question 5

    Chemical Thermodynamics and Energetics. Asked once: 21 Apr 2025 S1 (same type asked 4 times) See all 4 of this type

    74
    Which of the following set of thermodynamic conditions is true for the reaction to be spontaneous at high temperature?

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