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Day 382: MHT-CET Chemistry

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

  1. Question 1

    Redox Reactions. Asked once: 10 May 2023 S2 (same type asked 6 times) See all 6 of this type

    95
    What is the change in oxidation number of S in following reaction? H2S+NO3−→H2O+NO+S\text{H}_2\text{S} + \text{NO}_3^- \rightarrow \text{H}_2\text{O} + \text{NO} + \text{S}

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  2. Question 2

    Electrochemistry. Asked once: 9 May 2023 S2 (same type asked 6 times) See all 6 of this type

    70
    Which of the following is used to avoid leakage of electrolyte in dry cell?

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  3. Question 3

    Halogen Derivatives of Alkanes. Asked once: May 2022 S1 (same type asked 6 times) See all 6 of this type

    84
    Which among the following compounds contains highest number of chlorine atoms in their single molecule?

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  4. Question 4

    States of Matter. Asked once: 4 May 2023 S1 (same type asked 6 times) See all 6 of this type

    81
    Calculate the volume of gas at 1.25 atmosphere, if volume occupied by gas at 1 atmosphere and at same temperature is 25 mL.

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  5. Question 5

    Chemical Thermodynamics and Energetics. Asked once: 9 May 2023 S1 (same type asked 6 times) See all 6 of this type

    52
    For the reaction, C3H8(g)+5O2(g)→3CO2(g)+4H2O(l)\text{C}_3\text{H}_8(\text{g}) + 5\text{O}_2(\text{g}) \rightarrow 3\text{CO}_2(\text{g}) + 4\text{H}_2\text{O(l)} at constant temperature, ΔH−ΔU\Delta H - \Delta U is

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