PYQ Vault

Day 45: MH HSC Class 12 Chemistry

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

  1. Question 1

    Halogen Derivatives. Asked once: Mar 2023 (same type asked 4 times)

    Answer the following questions:
    Q.2.iii
    Write the structure of the product formed when chlorobenzene is treated with sodium metal in the presence of dry ether.

  2. Question 2

    Introduction to Polymer Chemistry. Asked once: Mar 2022 (same type asked 4 times)

    Q.16
    Write classification of polymers on the basis of structure.

  3. Question 3

    Chemical Thermodynamics. Asked once: Feb 2024 (same type asked 4 times)

    Q. 17
    Calculate the standard enthalpy of combustion of methane, if the standard enthalpy of formation of methane, carbon dioxide and water are −74.8-74.8, −393.5-393.5 and −285.8 kJ mol−1-285.8\ \mathrm{kJ\,mol^{-1}} respectively.

  4. Question 4

    Electrochemistry. Asked once: Mar 2019 (same type asked 4 times)

    Q.12 OR
    The molar conductivity of 0.05 M BaCl20.05\text{ M }\text{BaCl}_{2} solution at 25∘C25^{\circ}\text{C} is 223 Ω^-1^cm^2^mol^-1^. What is its conductivity?

  5. Question 5

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

    Answer the following questions :
    Q.2.ii
    Write the name of reduction product formed when ethyl cyanide is treated with sodium and alcohol.