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Day 166: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 1 Feb 2024 (same type asked 3 times) See all 3 of this type

    150
    10 mL10\text{ }mL of gaseous hydrocarbon on combustion gives 40 mL40\text{ }mL of CO2( g)CO_{2}(\text{ }g) and 50 mL50\text{ }mL of water vapour. Total number of carbon and hydrogen atoms in the hydrocarbon is ______ .

  2. Question 2

    Electrochemistry. Asked once: 29 Jan 2025 (same type asked 3 times) See all 3 of this type

    111
    O2O_{2} gas will be evolved as a product of electrolysis of : (a) an aqueous solution of AgNO3AgNO_{3} using silver electrodes. (b) an aqueous solution of AgNO3AgNO_{3} using platinum electrodes. (c) a dilute solution of H2SO4H_{2}SO_{4} using platinum electrodes. (d) a high concentration solution of H2SO4H_{2}SO_{4} using platinum electrodes. Choose the correct answer from the options given below :

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  3. Question 3

    Electrochemistry. Asked once: 5 Apr 2024 (same type asked 3 times) See all 3 of this type

    49
    Molar ionic conductivities of divalent cation and anion are 57 S cm2 mol−157\text{ }S{\text{ }cm}^{2}{\text{ }mol}^{- 1} and 73 S cm2 mol−173\text{ }S{\text{ }cm}^{2}{\text{ }mol}^{- 1} respectively. The molar conductivity of solution of an electrolyte with the above cation and anion will be :

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  4. Question 4

    Equilibrium. Asked once: 12 Apr 2023 (same type asked 3 times) See all 3 of this type

    54
    An analyst wants to convert. 1 LHCl1\text{ }LHCl of pH=1pH = 1 to a solution of HClHCl of pH2pH2. The volume of water needed to do this dilution is___ mLmL. (Nearest Integer)

  5. Question 5

    Hydrocarbons. Asked once: 7 Apr 2025 (same type asked 3 times) See all 3 of this type

    26
    Given below are two statements : Statement I : Ozonolysis followed by treatment with Zn,H2OZn,H_{2}O of cis-2-butene gives ethanal. Statement II : The product obtained by ozonolysis followed by treatment with Zn,H2OZn,H_{2}O of 3, 6-dimethyloct-4-ene has no chiral carbon atom. In the light of the above statements, choose the correct answer from the options given below

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