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Day 375: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 28 Jul 2022 (same type asked 11 times) See all 11 of this type

    141
    2 L2\text{ }L of 0.2MH2SO40.2MH_{2}SO_{4} is reacted with 2 L2\text{ }L of 0.1M0.1M NaOHNaOH solution, the molarity of the resulting product Na2SO4Na_{2}SO_{4} in the solution is ____millimolar. (Nearest integer).

  2. Question 2

    Coordination Compounds. Asked once: 26 Jul 2022 (same type asked 10 times) See all 10 of this type

    131
    The metal complex that is diamagnetic is (Atomic number: Fe,26Fe,26; Cu,29Cu,29 )

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  3. Question 3

    Some Basic Concepts of Chemistry. Asked once: 25 Jun 2022 (same type asked 10 times) See all 10 of this type

    51
    The number of NN atoms in 681 g681\text{ }g of C7H5 N3O6C_{7}H_{5}{\text{ }N}_{3}O_{6} is x×1021x \times10^{21}. The value of xx is (NA=6.02×1023 mol−1)\left( N_{A}= 6.02 \times 10^{23}\text{ }mol^{- 1} \right) (Nearest Integer)

  4. Question 4

    Coordination Compounds. Asked once: 27 Jun 2022 (same type asked 10 times) See all 10 of this type

    130
    Arrange the following coordination compounds in the increasing order of magnetic moments. (Atomic numbers: Mn=25;Fe=26Mn = 25;Fe = 26 ) (A) [FeF6]3−\left\lbrack FeF_{6} \right\rbrack^{3 -} (B) [Fe(CN)6]3−\left\lbrack Fe(CN)_{6} \right\rbrack^{3 -} (C) [MnCl6]3−\left\lbrack MnCl_{6} \right\rbrack^{3 -} (high spin) (D) [Mn(CN)6]3−\left\lbrack Mn(CN)_{6} \right\rbrack^{3 -}

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  5. Question 5

    Chemical Bonding and Molecular Structure. Asked once: 2021 Paper 20 (same type asked 10 times) See all 10 of this type

    33
    Match List-I with List-II:
    List-I (Species)List-II (Number of lone pairs of electrons on the central atom)
    (A)XeF2XeF_{2}(i)0
    (B)XeO2F2XeO_{2}F_{2}(ii)1
    (C)XeO3F2XeO_{3}F_{2}(iii)2
    (D)XeF4XeF_{4}(iv)3
    Choose the most appropriate answer from the options given below:

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