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Day 414: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 9 Apr 2024

    38
    Given below are two statements: Statement (I): The oxidation state of an element in a particular compound is the charge acquired by its atom on the basis of electron gain enthalpy consideration from other atoms in the molecule. Statement (II): pπp\pi - pπp\pi bond formation is more prevalent in second period elements over other periods. In the light of the above statements, choose the most appropriate answer from the options given below:

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  2. Question 2

    Structure of Atom. Asked once: 7 Apr 2025

    117
    The extra stability of half-filled subshell is due to (A) Symmetrical distribution of electrons (B) Smaller coulombic repulsion energy (C) The presence of electrons with the same spin in non-degenerate orbitals (D) Larger exchange energy (E) Relatively smaller shielding of electrons by one another Identify the correct statements

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  3. Question 3

    The d- and f-Block Elements. Asked once: 8 Apr 2024

    36
    Match List I with List-II Choose the correct answer from the option below:

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  4. Question 4

    The p-Block Elements. Asked once: 3 Apr 2025

    27
    Given below are two statements Statement I : The N-N single bond is weaker and longer than that of P−PP - P single bond Statement II : Compounds of group 15 elements in +3 oxidation states readily undergo disproportionation reactions. In the light of above statements, choose the correct answer from the options given below

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  5. Question 5

    Alcohols, Phenols and Ethers. Asked once: 7 Apr 2025

    31
    Given below are two statements: Statement I : Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent. Statement II : Sodium metal can be used to dry diethyl ether and not ethyl alcohol. In the light of given statements, choose the correct answer from the options given below

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