PYQ Vault

Day 8: MH HSC Class 12 Chemistry

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

  1. Question 1

    Electrochemistry. Asked 2 times: Mar 2017, Jun 2026

    Q. 22
    (a) Write cell reactions of hydrogen-oxygen fuel cell at anode and cathode. (b) Write an application of electrochemical series.

  2. Question 2

    Elements of Groups 16, 17 and 18. Asked 2 times: Jul 2025, Jun 2026

    Answer the following questions :
    Q.2.v
    Draw the structure of perchloric acid.

  3. Question 3

    Elements of Groups 16, 17 and 18. Asked 2 times: Mar 2023, Jun 2026

    Q. 28(ii)
    (b) Give reason – Ozone is a good bleaching agent. (c) Write any two uses of SO2\mathrm{SO_2}.

  4. Question 4

    Green Chemistry and Nanochemistry. Asked 2 times: Mar 2023, Jun 2026

    Answer the following questions :
    Q.2.iii
    Write the name of nanostructured material used in tyres of car to increase their life.

  5. Question 5

    Green Chemistry and Nanochemistry. Asked 2 times: Jul 2024, Jun 2026

    Q. 16
    (a) Mention the names of four principles of green chemistry. (b) Write advantages of nanoparticles and nanotechnology in the field of energy sector.