PYQ Vault

Day 96: MH HSC Class 12 Chemistry

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

  1. Question 1

    Solutions. Asked once: Mar 2018

    Q.4.ii
    22.22 gram of urea22.22\text{ gram of urea} was dissolved in 300 grams of water300\text{ grams of water}. Calculate the number of moles of urea and molality of the urea solution. (Given: Molar mass of urea =60 gram mol−1= 60\text{ gram mol}^{- 1})

  2. Question 2

    Alcohols, Phenols and Ethers. Asked once: Mar 2023

    Q. 16(iii)
    Convert the following: (iii) Diethyl ether into ethyl chloride

  3. Question 3

    Aldehydes, Ketones and Carboxylic Acids. Asked once: Feb 2020

    Q.11
    Identify ’A’ and ’B’ in the following reaction:

  4. Question 4

    Chemical Thermodynamics. Asked once: Mar 2017

    Q.2.vi
    What will happen to the internal energy if work is done by the system?

  5. Question 5

    Elements of Groups 16, 17 and 18. Asked once: Mar 2018

    Q.3.i
    Action of ozone on hydrogen peroxide.