PYQ Vault

Day 111: 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: 7 Apr 2025 (same type asked 15 times) See all 15 of this type

    33
    Which of the following is the correct IUPAC name of given organic compound (X) ?

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  2. Question 2

    Some Basic Concepts of Chemistry. Asked once: 22 Jan 2026 S2 (same type asked 14 times) See all 14 of this type

    28
    A+2 B⟶AB2A + 2\text{ }B \longrightarrow AB_{2} 36.0 g of 'A' (Molar mass : 60 g mol−160\text{ }g{\text{ }mol}^{- 1} ) and 56.0 g of ' B ' (Molar mass : 80 g mol−180\text{ }g{\text{ }mol}^{- 1}) are allowed to react. Which of the following statements are correct? (A) ' A ' is the limiting reagent (B) 77.0 g of AB2{AB}_{2} is formed (C) Molar mass of AB2{AB}_{2} is 140 g mol−1140\text{ }g{\text{ }mol}^{- 1} (D) 15.0 g of A is left unreacted after the completion of reaction. Choose the correct answer from the options given below :

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  3. Question 3

    Chemical Bonding and Molecular Structure. Asked once: 28 Jan 2026 S2 (same type asked 13 times) See all 13 of this type

    37
    Match List-I with List-II according to shape. List-I List-II (A) XeO3{XeO}_{3} (I) BrF5{BrF}_{5} (B) XeF2{XeF}_{2} (II) NH3{NH}_{3} (C) XeO2 F2{XeO}_{2}{\text{ }F}_{2} (III) [I3]−\left\lbrack I_{3} \right\rbrack^{-} (D) XeOF4{XeOF}_{4} (IV)  SF4\ {SF}_{4} Choose the correct answer from the options given below:

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  4. Question 4

    Coordination Compounds. Asked once: 23 Jan 2026 S2 (same type asked 12 times) See all 12 of this type

    30
    Identify the CORRECT set of details from the following : (A) [Co(NH3)6]3+\left\lbrack Co\left( {NH}_{3} \right)_{6} \right\rbrack^{3 +} : Inner orbital complex ; d2d^{2} sp3{sp}^{3} hybridized (B) [MnCl6]3−\left\lbrack {MnCl}_{6} \right\rbrack^{3 -} : Outer orbital complex; sp3d2{sp}^{3}{d}^{2} hybridized (C) [CoF6]3−\left\lbrack {CoF}_{6} \right\rbrack^{3 -} : Outer orbital complex ; d2sp3d^{2}{sp}^{3} hybridized (D) [FeF6]3−\left\lbrack {FeF}_{6} \right\rbrack^{3 -} : Outer orbital complex: sp3 d2{sp}^{3}{\text{ }d}^{2} hybridized (E) [Ni(CN)4]2−\left\lbrack Ni(CN)_{4} \right\rbrack^{2 -} : Inner orbital complex ; sp3{sp}^{3} hybridized Choose the correct answer from the options given below:

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  5. Question 5

    Hydrocarbons. Asked once: 2 Apr 2025 (same type asked 11 times) See all 11 of this type

    26
    Designate whether each of the following compounds is aromatic or not aromatic.

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