PYQ Vault

Day 448: JEE Mains Chemistry

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

  1. Question 1

    Chemical Thermodynamics. Asked once: 2 Apr 2025

    118
    Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?

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  2. Question 2

    Classification of Elements and Periodicity. Asked once: 22 Jan 2025

    114
    Given below are two statements : Statement (I) : An element in the extreme left of the periodic table forms acidic oxides. Statement (II) : Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table. In the light of the above statements, choose the correct answer from the options given below :

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  3. Question 3

    Coordination Compounds. Asked once: 29 Jul 2022

    146
    Sum of oxidation state (magnitude) and coordination number of cobalt in Na[Co(bpy)Cl4]Na\left\lbrack Co(\text{bpy})Cl_{4} \right\rbrack is
  4. Question 4

    Electrochemistry. Asked once: 5 Apr 2024

    129
    The quantity of silver deposited when one coulomb charge is passed through AgNO3AgNO_{3} solution:

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  5. Question 5

    Equilibrium. Asked once: 15 Apr 2023

    40
    Which of the following statement(s) is/are correct? (A) The pHpH of 1×10−8MHCl1 \times10^{- 8}MHCl solution is 8 . (B) The conjugate base H2PO4−H_{2}PO_{4}^{-}is HPO4 2−HPO_{4}\ ^{2 -}. (C) KwK_{w} increases with increase in temperature. (D) When a solution of weak monoprotic acid is titrated against a strong base at half neutralisation point, pH=12pKapH =\frac{1}{2}pK_{a} Choose the correct answer from the option given below.

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