PYQ Vault

Day 43: MH HSC Class 12 Chemistry

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

  1. Question 1

    Halogen Derivatives. Asked once: Feb 2024 (same type asked 4 times)

    Q. 18
    What is the action of following on ethyl bromide ? (a) silver nitrite (b) Mg in dry ether (c) alcoholic sodium hydroxide

  2. Question 2

    Ionic Equilibria. Asked once: Jul 2025 (same type asked 4 times)

    Q. 16
    Define : (i) Buffer solution (ii) Solubility product (iii) Common ion effect

  3. Question 3

    Solid State. Asked once: Jul 2024 (same type asked 4 times)

    Select and write the correct answer for the following multiple choice type of questions :
    Q.1.iii
    The relation between radius of sphere and edge length in simple cubic lattice is ____.

    Tap an option to check your answer.

  4. Question 4

    Chemical Thermodynamics. Asked once: Feb 2020 (same type asked 4 times)

    Q.1.x
    Calculate the work done during the reactions represented by the following thermochemical equation at 300 K300\text{ K}: CH4(g)+2O2(g)→CO2(g)+2H2O(l)\text{CH}_{4}(g) + 2\text{O}_{2}(g) \rightarrow \text{CO}_{2}(g) + 2\text{H}_{2}\text{O}(l)

    Tap an option to check your answer.

  5. Question 5

    Electrochemistry. Asked once: Jul 2024 (same type asked 4 times)

    Answer the following questions :
    Q.2.iii
    Calculate the standard potential of the following cell at 25°C : Zn(s)∣Zn2+(0.08 M)∥Cr3+(0.1 M)∣Cr(s)\mathrm{Zn_{(s)} \mid Zn^{2+}(0.08\,M) \parallel Cr^{3+}(0.1\,M) \mid Cr_{(s)}} EZn∘=−0.76 VE^{\circ}_{\mathrm{Zn}} = -0.76\ \mathrm{V}, ECr∘=−0.74 VE^{\circ}_{\mathrm{Cr}} = -0.74\ \mathrm{V}