PYQ Vault

Day 72: MH HSC Class 12 Chemistry

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

  1. Question 1

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

    Q.1.x
    The value of [H+]\left\lbrack \text{H}^{+} \right\rbrack in mol L−1\text{mol L}^{- 1} of 0.001 M0.001\text{ M} acetic acid solution (Ka=1.8×10−5)\left( K_{\text{a}} = 1.8 \times 10^{- 5} \right) is ______.

    Tap an option to check your answer.

  2. Question 2

    Chemical Thermodynamics. Asked once: Mar 2014 (same type asked 4 times)

    Q.2.i
    One mole of a gas expands by 3 L3\text{ L} against a constant pressure of 3 atmosphere3\text{ atmosphere}. Calculate the work done in: a. L atm\text{L atm} b. Joules c. Calories

  3. Question 3

    Elements of Groups 16, 17 and 18. Asked once: Mar 2015 (same type asked 4 times)

    Q.2.ii
    Write molecular formulae and structures of the following compounds: a. Dithionic acid b. Peroxymonosulphuric acid c. Pyrosulphuric acid d. Dithionous acid.

  4. Question 4

    Halogen Derivatives. Asked once: Mar 2015 (same type asked 4 times)

    Q.5.i
    Identify the product 'D' in the following sequence of reactions:

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  5. Question 5

    Introduction to Polymer Chemistry. Asked once: Mar 2015 (same type asked 4 times)

    Q.6.viii
    Explain with examples, branched and linear polymers.