PYQ Vault

Day 71: MH HSC Class 12 Chemistry

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

  1. Question 1

    Halogen Derivatives. Asked once: Mar 2019 (same type asked 4 times)

    Q.19
    What is the action of the following on ethyl bromide i\text{i}. alcoholic solution of potassium hydroxide ii\text{ii}. moist silver oxide iii. silver acetate?

  2. Question 2

    Ionic Equilibria. Asked once: Feb 2024 (same type asked 4 times)

    Q. 9
    Explain buffer action of sodium acetate-acetic acid buffer.

  3. Question 3

    Electrochemistry. Asked once: Mar 2022 (same type asked 4 times)

    Q.1.ix
    The standard potential of the cell in the following reaction is ______. Cd(s)+Cu2+(aq)→Cd2+(aq)+Cu(s)\text{Cd}(s) + \text{Cu}^{2 +}(aq) \rightarrow \text{Cd}^{2 +}(aq) + \text{Cu}(s) (ECd∘=−0.403 V,ECu∘=0.334 V)\left( \text{E}_{\text{Cd}}^{\circ} = - 0.403\text{ V},\text{E}_{\text{Cu}}^{\circ} = 0.334\text{ V} \right)

    Tap an option to check your answer.

  4. Question 4

    Elements of Groups 16, 17 and 18. Asked once: Mar 2017 (same type asked 4 times)

    Q.4.i
    Write two uses of each of the following: a. Sulphur b. Chlorine.

  5. Question 5

    Halogen Derivatives. Asked once: Mar 2014 (same type asked 4 times)

    Q.7.vi
    Distinguish between SN1\text{S}_{\text{N}}1 and SN2\text{S}_{\text{N}}2 mechanisms.