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Day 103: JEE Mains Chemistry

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

  1. Question 1

    Chemical Thermodynamics. This type asked 2 times: 29 Jun 2022, 29 Jan 2024. This one: 29 Jan 2024 See all 2 of this type

    148
    Standard enthalpy of vapourisation for CCl4CCl_{4} is 30.5 kJ mol−130.5\text{ }kJ{\text{ }mol}^{- 1}. Heat required for vapourisation of 284 g284\text{ }g of CCl4CCl_{4} at constant temperature is ____ kJkJ. (Given molar mass in mol−1;C=12,Cl=35.5mol^{- 1};C = 12,Cl = 35.5 )

  2. Question 2

    The d- and f-Block Elements. This type asked 2 times: 26 Jun 2022, 29 Jan 2024. This one: 29 Jan 2024 See all 2 of this type

    142
    The oxidation number of iron in the compound formed during brown ring test for NO3−NO_{3}^{-}ion is _____

  3. Question 3

    Aldehydes, Ketones and Carboxylic Acids. This type asked 2 times: 24 Jan 2023, 27 Jan 2024. This one: 27 Jan 2024 See all 2 of this type

    36
    Which of the following has highly acidic hydrogen?

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  4. Question 4

    Haloalkanes and Haloarenes. This type asked 2 times: 28 Jun 2022, 27 Jan 2024. This one: 27 Jan 2024 See all 2 of this type

    122
    Which among the following halide/s will not show SN1S_{N}1 reaction: Choose the most appropriate answer from the options given below:

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  5. Question 5

    The p-Block Elements. This type asked 2 times: 12 Apr 2023, 27 Jan 2024. This one: 27 Jan 2024 See all 2 of this type

    43
    Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Melting point of Boron (2453 K) is unusually high in group 13 elements. Reason (R): Solid Boron has very strong crystalline lattice. In the light of the above statements, choose the most appropriate answer from the options given below;

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