PYQ Vault

Day 56: MH HSC Class 12 Chemistry

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

  1. Question 1

    Chemical Thermodynamics. Asked once: Mar 2023 (same type asked 2 times)

    Answer the following questions:
    Q.2.vii
    Write the correct condition for spontaneity in terms of Gibbs energy.

  2. Question 2

    Solutions. Asked once: Mar 2017 (same type asked 2 times)

    Q.4.iii
    The boiling point of benzene is 353.23 K353.23\text{ K}. When 1.80 gram1.80\text{ gram} of non-volatile solute was dissolved in 90 gram90\text{ gram} of benzene, the boiling point is raised to 354.11 K354.11\text{ K}. Calculate the \*\*molar mass of solute}.[.\lbrack Kb for benzene =2.53 K kg mol−1]= 2.53\text{ K kg mol}^{- 1} \rbrack

  3. Question 3

    Solutions. Asked once: Mar 2018 (same type asked 2 times)

    Q.1.vi
    Which of the following 0.1 M aqueous solutions0.1\text{ M aqueous solutions} will exert highest osmotic pressure?

    Tap an option to check your answer.

  4. Question 4

    Chemical Thermodynamics. Asked once: Mar 2023 (same type asked 2 times)

    Q.12
    Define Extensive property.

  5. Question 5

    Aldehydes, Ketones and Carboxylic Acids. Asked once: Feb 2020 (same type asked 2 times)

    Q.29
    Explain the mechanism of aldol addition reaction. Mention two uses of carboxylic acids.