PYQ Vault

Day 63: MH HSC Class 12 Chemistry

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

  1. Question 1

    Introduction to Polymer Chemistry. Asked once: Mar 2017 (same type asked 4 times)

    Q.6.vii
    Explain the following terms: a\text{a}. Homopolymers b\text{b}. Elastomers.

  2. Question 2

    Electrochemistry. Asked once: Mar 2017 (same type asked 4 times)

    Q.3.ii
    0.05 M NaOH0.05\text{ M NaOH} solution offered a resistance of 31.6 Ω in a conductivity cell at 298 K298\text{ K}. If the cell constant of the cell is 0.367 cm−10.367\text{ cm}^{- 1}, calculate the molar conductivity of NaOH\text{NaOH} solution.

  3. Question 3

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

    Q.2.iv
    Write chemical reactions involved in formation of ethylamine using acetaldoxime.

  4. Question 4

    Biomolecules. Asked once: Mar 2016 (same type asked 3 times)

    Q.7.ii
    What are vitamins? Name any two diseases caused by deficiency of vitamin A\text{A}. Write the structures of \text{of }: a\text{a}. nucleoside b\text{b}. nucleotide.

  5. Question 5

    Chemical Kinetics. Asked once: Mar 2017 (same type asked 3 times)

    Q.4.iv
    For a first order reaction, the half life period at 20∘C20^{\circ}\text{C} is 4×1013 sec−14 \times 10^{13}\text{ sec}^{- 1} and 98.6 kJ mol−198.6\text{ kJ mol}^{- 1} respectively. At what temperature will its half life period be 10 minutes10\text{ minutes}?