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Day 179: JEE Mains Chemistry

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

  1. Question 1

    Haloalkanes and Haloarenes. Asked once: 25 Jan 2023 (same type asked 3 times) See all 3 of this type

    32
    The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OH−OH^{-}is

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  2. Question 2

    Some Basic Concepts of Chemistry. Asked once: 29 Jun 2022 (same type asked 3 times) See all 3 of this type

    121
    Using the rules for significant figures, the correct answer for the expression 0.02858×0.1120.5702\frac{0.02858 \times 0.112}{0.5702} will be:

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  3. Question 3

    The d- and f-Block Elements. Asked once: 30 Jan 2023 (same type asked 3 times) See all 3 of this type

    130
    Formulae for Nessler's reagent is:

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  4. Question 4

    Equilibrium. Asked once: 29 Jul 2022 (same type asked 3 times) See all 3 of this type

    140
    A compound ' XX ' is a weak acid and it exhibits colour change at pHpH close to the equivalence point during neutralization of NaOHNaOH with CH3COOHCH_{3}COOH. Compound ' XX ' exists in ionized form in basic medium. The compound ' XX ' is:

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  5. Question 5

    The p-Block Elements. Asked once: 2021 Paper 16 (same type asked 3 times) See all 3 of this type

    23
    Oxidation state of Phosphorus in H4P2O7;H4P2O6H_{4}P_{2}O_{7};H_{4}P_{2}O_{6} and H4P2O5H_{4}P_{2}O_{5} is respectively:

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