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Day 218: 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: 9 Apr 2024 (same type asked 7 times) See all 7 of this type

    123
    Total number of stereo isomers possible for the given structure:

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  2. Question 2

    Some Basic Concepts of Chemistry. Asked once: 6 Apr 2024 (same type asked 7 times) See all 7 of this type

    46
    The density of ' xx ' M solution ('x' molar) of NaOHNaOH is 1.12 g mL−11.12\text{ }g{\text{ }mL}^{- 1}. while in molality, the concentration of the solution is 3 m3\text{ }m ( 3 molal). Then xx is (Given: Molar mass of NaOHNaOH is 40 g/mol40\text{ }g/mol )

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  3. Question 3

    Some Basic Concepts of Chemistry. Asked once: 31 Jan 2024 (same type asked 7 times) See all 7 of this type

    53
    Number of moles of methane required to produce 22 gCO2( g)22\text{ }gCO_{2(\text{ }g)} after combustion is x×10−2x \times10^{- 2} moles. The value of xx is

  4. Question 4

    The p-Block Elements. Asked once: 25 Jun 2022 (same type asked 7 times) See all 7 of this type

    130
    The number of bridged oxygen atoms present in compound BB formed from the following reactions is
    Pb(NO3)2→673 K A+PbO+O2Pb\left( NO_{3} \right)_{2}\overset{673\text{ }K}{\rightarrow}\text{ }A + PbO +O_{2}
    A→ Dimerise BA\overset{\text{~Dimerise~}}{\rightarrow}B

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  5. Question 5

    Electrochemistry. Asked once: 11 Apr 2023 (same type asked 6 times) See all 6 of this type

    60
    In an electrochemical reaction of lead, at standard temperature, if E(Pb2+/Pb)0=mE_{\left( Pb^{2 +}/Pb \right)}^{0}= m Volt and E(Pb4+/Pb)0=nE_{\left( Pb^{4 +}/Pb \right)}^{0}= n Volt , then the value of E(Pb2+/Pb4+)0E_{\left( Pb^{2 +}/Pb^{4 +} \right)}^{0} is given by m−xnm - xn. The value of xx is___ (Nearest integer)