PYQ Vault
EbooksTutor

Day 113: JEE Mains Chemistry

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

  1. Question 1

    Chemical Bonding and Molecular Structure. Asked once: 29 Jan 2024 (same type asked 10 times) See all 10 of this type

    51
    Number of compounds with one lone pair of electrons on central atom amongst following is___ O3,H2O,SF4,ClF3,NH3,BrF5,XeF4O_{3},H_{2}O,SF_{4},ClF_{3},NH_{3},BrF_{5},XeF_{4}

  2. Question 2

    Amines. Asked once: 7 Apr 2025 (same type asked 9 times) See all 9 of this type

    110
    The descending order of basicity of following amines is : (A) aniline, (B) 4-methoxyaniline, (C) 4-nitroaniline, (D) CH3NH2CH_{3}NH_{2}, (E) (CH3)2NH(CH_{3})_{2}NH. Choose the correct answer from the options given below:

    Tap an option to check your answer.

  3. Question 3

    Coordination Compounds. Asked once: 2 Apr 2026 S1 (same type asked 9 times) See all 9 of this type

    37
    Match List-I with List-II. (en = ethylenediamine)
    List-I Chromium(III) complexList-II Δ0\Delta_{0} (cm−1cm^{- 1})
    (A)[Cr(CN)6]3−\left\lbrack Cr(CN)_{6} \right\rbrack^{3 -}(I)15,060
    (B)[CrF6]3−\left\lbrack {CrF}_{6} \right\rbrack^{3 -}(II)17,400
    (C)[Cr(H2O)6]3+\left\lbrack Cr\left( H_{2}O \right)_{6} \right\rbrack^{3 +}(III)22,300
    (D)[Cr(en)3]3+\left\lbrack Cr(en)_{3} \right\rbrack^{3 +}(IV)26,600
    Choose the correct answer from the options given below :

    Tap an option to check your answer.

  4. Question 4

    Coordination Compounds. Asked once: 2 Apr 2025 (same type asked 9 times) See all 9 of this type

    46
    A transition metal (M) among Mn,Cr,CoMn,Cr,Co and Fe has the highest standard electrode potential (M3+/M2+)\left( M^{3 +}/M^{2 +} \right). It forms a metal complex of the type [M(CN)6]4−\left\lbrack M(CN)_{6} \right\rbrack^{4 -}. The number of electrons present in the ege_{g} orbital of the complex is ____ .

  5. Question 5

    Coordination Compounds. Asked once: 4 Apr 2025 (same type asked 9 times) See all 9 of this type

    34
    Number of stereoisomers possible for the complexes, [CrCl3(py)3]\left\lbrack CrCl_{3}(py)_{3} \right\rbrack and [CrCl2(ox)2]3−\left\lbrack CrCl_{2}(ox)_{2} \right\rbrack^{3 -} are respectively. (py == pyridine, ox=ox= oxalate)

    Tap an option to check your answer.