PYQ Vault

Day 366: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 2021 Paper 10 (same type asked 7 times) See all 7 of this type

    46
    Given below are two statements: Statement I: C2H5OHC_{2}H_{5}OH and AgCNAgCN both can generate nucleophile. Statement II: KCNKCN and AgCNAgCN both will generate nitrile nucleophile with all reaction conditions. Choose the most appropriate option:

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  2. Question 2

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 2021 Paper 19 (same type asked 7 times) See all 7 of this type

    48
    The number of stereoisomers possible for 1,2dimethyl cyclopropane is :

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  3. Question 3

    Some Basic Concepts of Chemistry. Asked once: 2021 Paper 16 (same type asked 7 times) See all 7 of this type

    19
    If density of aqueous NaOHNaOH solution is 1.2 g/cm31.2\text{ }g/cm^{3}, then find its molality. [Given that: density of water =1gm/cm3= 1gm/cm^{3} and molar mass of NaOH=40gmNaOH = 40gm ]

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  4. Question 4

    Some Basic Concepts of Chemistry. Asked once: 2021 Paper 14 (same type asked 7 times) See all 7 of this type

    27
    In the complete combustion of Butane, 72 g72\text{ }g of water is given out. How much Butane was there?

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  5. Question 5

    Some Basic Concepts of Chemistry. Asked once: 28 Jun 2022 (same type asked 6 times) See all 6 of this type

    121
    Compound A contains 8.7%8.7\% Hydrogen, 74%74\% Carbon and 17.3%17.3\% Nitrogen. The molecular formula of the compound is, Given: Atomic masses of C, HH and NN are 12, 1 and 14 amu respectively. The molar mass of the compound A is 162 g mol−1162\text{ }g{\text{ }mol}^{- 1}.

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