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Day 320: 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: 13 Apr 2023 (same type asked 10 times) See all 10 of this type

    55
    An organic compound gives 0.220 g0.220\text{ }g of CO2CO_{2} and 0.126 g0.126\text{ }g of H2OH_{2}O on complete combustion. If the %\% of carbon is 24 then the %\% hydrogen is___ ×10−1\times10^{- 1}. (Nearest integer)

  2. Question 2

    Coordination Compounds. Asked once: 13 Apr 2023 (same type asked 10 times) See all 10 of this type

    140
    Which of the following complexes will exhibit maximum attraction to an applied magnetic field?

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  3. Question 3

    Chemical Bonding and Molecular Structure. Asked once: 30 Jan 2023 (same type asked 10 times) See all 10 of this type

    45
    Match List I with List II
    LIST I (Species)LIST II (No. of lone pairs of e−e^{-} on the central atom)
    A.
    IF7IF_{7}
    		I.Three
    B.
    ICl4−ICl_{4}^{-}
    		II.One
    C.
    XeF6XeF_{6}
    		III.Two
    D.
    XeF2XeF_{2}
    		IV.Zero
    Choose the correct answer from the options given below:

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  4. Question 4

    Amines. Asked once: 27 Jan 2024 (same type asked 9 times) See all 9 of this type

    34
    Which of the following is strongest Bronsted base?

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  5. Question 5

    Coordination Compounds. Asked once: 3 Apr 2025 (same type asked 9 times) See all 9 of this type

    39
    The correct order of the complexes [Co(NH3)5(H2O)]3+\left\lbrack Co\left( NH_{3} \right)_{5}\left( H_{2}O \right) \right\rbrack^{3 +} (A),  [Co(NH3)6]3+\ \left\lbrack Co\left( NH_{3} \right)_{6} \right\rbrack^{3 +}(B), [Co(CN)6]3−(C)\left\lbrack Co(CN)_{6} \right\rbrack^{3 -}(C) and [CoCl(NH3)5]2+(D)\left\lbrack CoCl\left( NH_{3} \right)_{5} \right\rbrack^{2 +}(D) in terms of wavelength of light absorbed is :

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