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Day 200: JEE Mains Chemistry

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

  1. Question 1

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 29 Jan 2024 (same type asked 2 times) See all 2 of this type

    138
    Which one of the following will show geometrical isomerism?

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  2. Question 2

    Structure of Atom. Asked once: 25 Jul 2022 (same type asked 2 times) See all 2 of this type

    143
    When the excited electron of a HH atom from n=5n = 5 drops to the ground state, the maximum number of emission lines observed are

  3. Question 3

    The d- and f-Block Elements. Asked once: 27 Jan 2024 (same type asked 2 times) See all 2 of this type

    48
    NaClNaCl reacts with conc. H2SO4H_{2}SO_{4} and K2Cr2O7K_{2}Cr_{2}O_{7} to give reddish fumes (B), which react with NaOHNaOH to give yellow solution (C). (B) and (C) respectively are ;

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  4. Question 4

    Chemical Thermodynamics. Asked once: 29 Jun 2022 (same type asked 2 times) See all 2 of this type

    52
     17.0 g\ 17.0\text{ }g of NH3NH_{3} completely vapourises at −33.42∘C-33.42^{\circ}C and 1 bar pressure and the enthalpy change in the process is 23.4 kJ mol−123.4\text{ }kJ{\text{ }mol}^{- 1}. The enthalpy change for the vapourisation of 85 g85\text{ }g of NH3NH_{3} under the same conditions is ____\_\_\_\_ kJkJ.

  5. Question 5

    The d- and f-Block Elements. Asked once: 26 Jun 2022 (same type asked 2 times) See all 2 of this type

    50
    Which statement is not true with respect to nitrate ion test?

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