PYQ Vault

Day 64: MH HSC Class 12 Chemistry

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

  1. Question 1

    Electrochemistry. Asked once: Feb 2024 (same type asked 3 times)

    Answer the following questions :
    Q.2.vi
    Write SI unit of molar conductivity.

  2. Question 2

    Electrochemistry. Asked once: Mar 2015 (same type asked 3 times)

    Q.4.ii
    Calculate ΔE\Delta\text{E} and ΔG\Delta\text{G} for the reaction at 28∘C28^{\circ}\text{C}: Mg(s)+Sn2+(0.04 M)→Mg2+(0.06 M)+Sn(s)\text{Mg}(s) + \text{Sn}^{2 +}\left( 0.04\text{ M} \right) \rightarrow \text{Mg}^{2 +}\left( 0.06\text{ M} \right) + \text{Sn}(s) Ecell∘=2.23 V\text{E}_{\text{cell}}^{\circ} = 2.23\text{ V}. Is the reaction spontaneous?

  3. Question 3

    Elements of Groups 16, 17 and 18. Asked once: Mar 2016 (same type asked 3 times)

    Q.3.ii
    Explain the structure of ClF3\text{ClF}_{3}.

  4. Question 4

    Introduction to Polymer Chemistry. Asked once: Mar 2016 (same type asked 3 times)

    Q.10.vi
    Among the following, identify a copolymer.

    Tap an option to check your answer.

  5. Question 5

    Solutions. Asked once: Feb 2025 (same type asked 3 times)

    Answer the following questions :
    Q.2.v
    What is the molality of an aqueous solution of KBr having freezing point −3.72 ∘C-3.72\ \mathrm{{}^{\circ}C} (Kf(K_f for water is 1.86 K kg mol−1)1.86\ \mathrm{K\ kg\ mol^{-1}})?