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Day 379: JEE Mains Chemistry

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

  1. Question 1

    Hydrocarbons. Asked once: 2021 Paper 7 (same type asked 11 times) See all 11 of this type

    32
    Which of the following is an aromatic compound?

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  2. Question 2

    Some Basic Concepts of Chemistry. Asked once: 27 Jul 2022 (same type asked 11 times) See all 11 of this type

    141
    The normality of H2SO4H_{2}SO_{4} in the solution obtained on mixing 100 mL100\text{ }mL of 0.1MH2SO40.1MH_{2}SO_{4} with 50 mL50\text{ }mL of 0.1 MNaOHMNaOH is ×10−1 N\times10^{- 1}\text{ }N. (Nearest Integer)

  3. Question 3

    Coordination Compounds. Asked once: 28 Jun 2022 (same type asked 10 times) See all 10 of this type

    146
    [Fe(CN)6]4−\left\lbrack Fe(CN)_{6} \right\rbrack^{4 -}
    [Fe(CN)6]3−\left\lbrack Fe(CN)_{6} \right\rbrack^{3 -}
    [Ti(CN)6]3−\left\lbrack Ti(CN)_{6} \right\rbrack^{3 -}
    [Ni(CN)4]2−\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -}
    [Co(CN)6]3−\left\lbrack Co(CN)_{6} \right\rbrack^{3 -}
    Among the given complexes, number of paramagnetic complexes is

  4. Question 4

    Some Basic Concepts of Chemistry. Asked once: 2021 Paper 24 (same type asked 10 times) See all 10 of this type

    55
    The number of atoms in 8 g8\text{ }g of sodium is x×1023x \times10^{23}. The value of xx is (Nearest integer) [Given: NA=6.02×1023 mol−1N_{A}= 6.02 \times10^{23}{\text{ }mol}^{- 1} Atomic mass of Na=23.0u]Na = 23.0u\rbrack

  5. Question 5

    Coordination Compounds. Asked once: 2021 Paper 4 (same type asked 10 times) See all 10 of this type

    37
    In which of the following orders are the given complex ions arranged correctly with respect to their decreasing spin only magnetic moment ? (i) [FeF6]3−\left\lbrack FeF_{6} \right\rbrack^{3 -} (ii) [Co(NH3)6]3+\left\lbrack Co\left( NH_{3} \right)_{6} \right\rbrack^{3 +} (iii) [NiCl4]2−\left\lbrack NiCl_{4} \right\rbrack^{2 -} (iv) [Cu(NH3)4]2+\left\lbrack Cu\left( NH_{3} \right)_{4} \right\rbrack^{2 +}

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