PYQ Vault
EbooksTutor

Day 361: JEE Mains Chemistry

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

  1. Question 1

    Coordination Compounds. Asked once: 15 Apr 2023 (same type asked 9 times) See all 9 of this type

    51
    The homoleptic and octahedral complex of Co2+Co^{2 +} and H2OH_{2}O has____ unpaired electron(s) in the t2gt_{2g} set of orbitals.

  2. Question 2

    Coordination Compounds. Asked once: 28 Jul 2022 (same type asked 9 times) See all 9 of this type

    59
    Total number of relatively more stable isomer(s) possible for octahedral complex [Cu(en)2(SCN)2]\left\lbrack Cu(en)_{2}(SCN)_{2} \right\rbrack will be

  3. Question 3

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 27 Jun 2022 (same type asked 9 times) See all 9 of this type

    150
    0.25 g0.25\text{ }g of an organic compound containing chlorine gave 0.40 g0.40\text{ }g of silver chloride in Carius estimation. The percentage of chlorine present in the compound is [in nearest integer] (Given: Molar mass of AgAg is 108 g mol−1108\text{ }g{\text{ }mol}^{- 1} and that of ClCl is 35.5 g mol−135.5\text{ }g{\text{ }mol}^{- 1} )

  4. Question 4

    Coordination Compounds. Asked once: 29 Jul 2022 (same type asked 9 times) See all 9 of this type

    60
    [Fe(CN)6]3−\left\lbrack Fe(CN)_{6} \right\rbrack^{3 -} should be an inner orbital complex. Ignoring the pairing energy, the value of crystal field stabilization energy for this complex is (-)_____ Δo\Delta_{o}. (Nearest integer)

  5. Question 5

    Chemical Bonding and Molecular Structure. Asked once: 25 Jul 2022 (same type asked 9 times) See all 9 of this type

    51
    Among the following species
    N2, N2 +,N2−,N2 2−,O2,O2+,O2−,O2 2−N_{2},{\text{ }N}_{2}\ ^{+},N_{2}^{-},N_{2}\ ^{2 -},O_{2},O_{2}^{+},O_{2}^{-},O_{2}\ ^{2 -}
    the number of species showing diamagnetism is