PYQ Vault

Day 48: MH HSC Class 12 Chemistry

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

  1. Question 1

    Amines. Asked once: Feb 2024 (same type asked 3 times)

    Q. 8
    Why amines are basic in nature? Among dimethylamine (pKb=3.27)(\mathrm{p}K_b = 3.27) and diethylamine (pKb=3.0)(\mathrm{p}K_b = 3.0), which one is more basic?

  2. Question 2

    Biomolecules. Asked once: Feb 2020 (same type asked 3 times)

    Q.1.vii
    Name the reagent which on reaction with glucose confirms the presence of five hydroxyl groups in the glucose molecule.

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  3. Question 3

    Chemical Kinetics. Asked once: Jul 2025 (same type asked 3 times)

    Q. 8
    Distinguish between order and molecularity of a reaction.

  4. Question 4

    Chemical Thermodynamics. Asked once: Mar 2019 (same type asked 3 times)

    Q.4
    A system absorbs 6 kJ6\text{ kJ} of heat and does 1.5 kJ1.5\text{ kJ} of work on its surroundings. The change in internal energy is ______.

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  5. Question 5

    Coordination Compounds. Asked once: Jul 2024 (same type asked 3 times)

    Select and write the correct answer for the following multiple choice type of questions :
    Q.1.viii
    Neutral complex in the following is _____

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