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Day 368: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 31 Jan 2023 (same type asked 14 times) See all 14 of this type

    149
    Assume carbon burns according to following equation:
    2C(s)+O2( g)→2CO(g)2C_{(s)}+O_{2(\text{ }g)}\rightarrow 2CO(g)
    when  12 g\ 12\text{ }g carbon is burnt in 48 g48\text{ }g of oxygen, the volume of carbon monoxide produced is ×\times 10−1 L10^{- 1}\text{ }L at STP [ nearest integer ] [Given: Assume co as ideal gas, Mass of c is 12 g mol−112\text{ }g{\text{ }mol}^{- 1}, Mass of OO is 16 g mol−116\text{ }g{\text{ }mol}^{- 1} and molar volume of an ideal gas STP is 22.7 L mol−122.7\text{ }L{\text{ }mol}^{- 1} ]

  2. Question 2

    Chemical Bonding and Molecular Structure. Asked once: 11 Apr 2023 (same type asked 13 times) See all 13 of this type

    40
    Match List-I with List-II: List-I (Species): (A) H3O+H_{3}O^{+}; (B) Acetylide anion; (C) NH4+NH_{4}^{+}; (D) ClO2−ClO_{2}^{-}. List-II (Geometry/Shape): (I) Tetrahedral; (II) Linear; (III) Pyramidal; (IV) Bent. Choose the correct answer from the options given below:

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  3. Question 3

    Coordination Compounds. Asked once: 27 Jan 2024 (same type asked 12 times) See all 12 of this type

    134
    Identify from the following species in which d2sp3d^{2}sp^{3} hybridization is shown by central atom:

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  4. Question 4

    Hydrocarbons. Asked once: 28 Jun 2022 (same type asked 11 times) See all 11 of this type

    42
    Which of the following structures are aromatic in nature?

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  5. Question 5

    Some Basic Concepts of Chemistry. Asked once: 25 Jan 2023 (same type asked 11 times) See all 11 of this type

    55
    The density of a monobasic strong acid (Molar mass 24.2 g/mol24.2\text{ }g/mol ) is 1.21 kg/L1.21\text{ }kg/L. The volume of its solution required for the complete neutralization of 25 mL25\text{ }mL of 0.24MNaOH0.24MNaOH is__ ×10−2 mL\times10^{- 2}\text{ }mL (Nearest integer)