PYQ Vault

Day 26: MH HSC Class 12 Chemistry

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

  1. Question 1

    Introduction to Polymer Chemistry. This type asked 3 times: Mar 2016, Feb 2020, Jun 2026. This one: Jun 2026

    Select and write the correct answers for the following multiple choice type of questions :
    Q.1.i
    Which of the following is NOT an elastomer?

    Tap an option to check your answer.

  2. Question 2

    Ionic Equilibria. This type asked 3 times: Mar 2023, Jul 2024, Jun 2026. This one: Jun 2026

    Q. 18
    The solubility product of AgBr is 5.2×10−135.2 \times 10^{-13}. Calculate its solubility in mol dm−3\mathrm{mol\ dm^{-3}} and g dm−3\mathrm{g\ dm^{-3}}. (Molar mass of AgBr = 187.8 g mol−1187.8\ \mathrm{g\ mol^{-1}})

  3. Question 3

    Solutions. This type asked 3 times: Mar 2015, Feb 2025, Jun 2026. This one: Jun 2026

    Q. 30(i)
    0.01 m aqueous formic acid solution freezes at −0.021∘C-0.021^{\circ}\mathrm{C}. Calculate its degree of dissociation. (Kf=1.86 K kg mol−1)(K_f = 1.86\ \mathrm{K\ kg\ mol^{-1}})

  4. Question 4

    Alcohols, Phenols and Ethers. This type asked 3 times: Mar 2022, Feb 2025, Feb 2026. This one: Feb 2026

    Q. 7(ii)
    Write the hydrolysis reaction of ethyl methyl ether.

  5. Question 5

    Aldehydes, Ketones and Carboxylic Acids. This type asked 3 times: Feb 2024, Feb 2025, Feb 2026. This one: Feb 2026

    Q. 21(ii)
    Convert : (a) Benzene into benzaldehyde (b) Cyclohexene into adipic acid