PYQ Vault

Day 61: MH HSC Class 12 Chemistry

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

  1. Question 1

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

    Q.31
    Define the following terms: a. Reversible process b. Standard enthalpy of combustion

  2. Question 2

    Halogen Derivatives. Asked once: Mar 2023 (same type asked 4 times)

    Q. 7(ii)
    Write the chemical reactions for the following: (ii) Ethyl bromide is heated with silver acetate

  3. Question 3

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

    Q. 8
    Define Buffer solution. Write the Henderson Hasselbalch equation for acidic buffer.

  4. Question 4

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

    Q. 15
    Construct a cell using standard hydrogen electrode and zinc electrode. Write its cell reaction and cell representation. Calculate cell potential of a cell with 0.01 M Zn2+0.01\ \mathrm{M}\ \mathrm{Zn^{2+}} ions. Standard potential of a cell is +0.76+0.76 V.

  5. Question 5

    Elements of Groups 16, 17 and 18. Asked once: Mar 2022 (same type asked 4 times)

    Q.30
    Write the chemical equation for preparation of sulphur dioxide from sulphur. Write uses of sulphur.