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Day 525: JEE Mains Chemistry

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

  1. Question 1

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 10 Apr 2023

    126
    In the reaction give below: The product ' XX ' is:

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  2. Question 2

    Amines. Asked once: 31 Jan 2023

    59
    How many of the transformations given below would result in aromatic amines?

  3. Question 3

    Chemical Bonding and Molecular Structure. Asked once: 2021 Paper 2

    41
    The Correct set from the following in which both pairs are in correct order of melting point is :

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  4. Question 4

    Chemical Kinetics. Asked once: 2021 Paper 22

    58
    According to the following figure, the magnitude of the enthalpy change of the reaction A+B→M+NA + B \rightarrow M + N in kJmol−1kJmol^{- 1} is equal to (Integer answer)

  5. Question 5

    Chemical Thermodynamics. Asked once: 25 Jan 2023

    56
    An athlete is given 100 g100\text{ }g of glucose (C6H12O6)\left( C_{6}H_{12}O_{6} \right) for energy. This is equivalent to 1800 kJ1800\text{ }kJ of energy. The 50%50\% of this energy gained is utilized by the athlete for sports activities at the event. In order to avoid storage of energy, the weight of extra water he would need to perspire is ____\_\_\_\_ gg (Nearest integer). Assume that there is no other way of consuming stored energy. Given: The enthalpy of evaporation of water is 45 kJ mol−145\text{ }kJ{\text{ }mol}^{- 1} Molar mass of C, H&O are 12,1 and 16 g mol−116\text{ }g{\text{ }mol}^{- 1}