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Day 544: JEE Mains Chemistry

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

  1. Question 1

    Amines. Asked once: 25 Jul 2022

    46
    An organic compound 'AA' on reaction with NH3NH_{3} followed by heating gives compound BB. Which on further strong heating gives compound CC (C8H5NO2)\left( C_{8}H_{5}NO_{2} \right). Compound CC on sequential reaction with ethanolic KOHKOH, alkyl chloride and hydrolysis with alkali gives a primary amine. The compound AA is:

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  2. Question 2

    Chemical Thermodynamics. Asked once: 2021 Paper 14

    38
    Solid X is converted into liquid X, and liquid X is converted into gaseous X. Enthalpy of fusion of solid X=2.8 kJ/molX= 2.8\text{ }kJ/mol, and enthalpy of vaporization of X=98.2 kJ/molX= 98.2\text{ }kJ/mol. The enthalpy of sublimation of X is ____\_\_\_\_ kJ/mol.

  3. Question 3

    Classification of Elements and Periodicity. Asked once: 2021 Paper 8

    32
    The set of elements that differ in mutual relationship from those of the other sets is:

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  4. Question 4

    Haloalkanes and Haloarenes. Asked once: 2021 Paper 17

    32
    Consider the above reaction, the major product " PP " formed is: -

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  5. Question 5

    Hydrocarbons. Asked once: 13 Apr 2023

    128
    Given below are two statements: Statement I: Tropolone is an aromatic compound and has 8π8\pi electrons. Statement II: π\pi electrons of >C=O> C = O group in tropolone is involved in aromaticity. In the light of the above statements, choose the correct answer from the options given below:

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