PYQ Vault

Day 468: JEE Mains Chemistry

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

  1. Question 1

    Chemical Thermodynamics. Asked once: 22 Jan 2025

    109
    Match List-I with List-II.
    List-I (Partial Derivatives)List-II (Thermodynamic Quantity)
    (A)
    (∂G∂T)P\left( \frac{\partial G}{\partial T} \right)_{P}
    (I)
    CPC_{P}
    (B)
    (∂H∂T)P\left( \frac{\partial H}{\partial T} \right)_{P}
    (II)-S
    (C)
    (∂G∂P)T\left( \frac{\partial G}{\partial P} \right)_{T}
    (III)
    CVC_{V}
    (D)
    (∂U∂T)V\left( \frac{\partial U}{\partial T} \right)_{V}
    (IV)V
    Choose the correct answer from the options given below :

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  2. Question 2

    Classification of Elements and Periodicity. Asked once: 4 Apr 2024

    47
    Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is _____ .
    B,C,N,S,O,F,P,Al,SiB,C,N,S,O,F,P,Al,Si

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  3. Question 3

    Coordination Compounds. Asked once: 2021 Paper 12

    32
    Which of the following do not have magnetic moment of 1.73 B.M.?

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  4. Question 4

    Electrochemistry. Asked once: 31 Jan 2024

    37
    Identify the factor from the following that does not affect electrolytic conductance of a solution.

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  5. Question 5

    Equilibrium. Asked once: 1 Feb 2023

    51
    (i) X(g)⇌Y(g)+Z(g), Kp1=3X(g) \rightleftharpoons Y(g) + Z(g),\ K_{p1}= 3 (ii) A(g)⇌2 B( g), Kp2=1A(g) \rightleftharpoons 2\text{ }B(\text{ }g),\ K_{p2}= 1 If the degree of dissociation and initial concentration of both the reactants X(g)X(g) and A(g)A(g) are equal, then the ratio of the total pressure at equilibrium (p1p2)\left( \frac{p_{1}}{p_{2}} \right) is equal to x:1x:1. The value of xx is ___(Nearest integer)