Equilibrium

JEE Advanced · Chemistry · 27 past questions

1. Q1 2026 Paper 2

   At a given temperature, 0.45 g of acetic acid in 50 mL of water is shaken with 1.0 g of charcoal and the pH…

   Try it →
2. Q2 2025 Paper 1

   At 25 °C, the concentration of H$^+$ ions in $1.00\times10^{-3}$ M aqueous solution of a weak monobasic acid…

   Try it →
3. Q3 2025 Paper 2

   The solubility of barium iodate in an aqueous solution prepared by mixing 200 mL of 0.010 M barium nitrate…

   Try it →
4. Q4 2023 Paper 1

   On decreasing the $p$H from 7 to 2, the solubility of a sparingly soluble salt (MX) of a weak acid (HX)…

   Try it →
5. Q5 2023 Paper 1

   In a one-litre flask, 6 moles of A undergoes the reaction A (g) ⇌ P (g). The progress of product formation at… (with a figure)

   Try it →
6. Q6 2022 Paper 1

   A solution is prepared by mixing 0.01 mol each of $\mathrm{H_2CO_3}$, $\mathrm{NaHCO_3}$…

   Try it →
7. Q7 2022 Paper 2

   Concentration of H$_2$SO$_4$ and Na$_2$SO$_4$ in a solution is 1 M and $1.8 \times 10^{-2}$ M, respectively.…

   Try it →
8. Q8 2020 Paper 2

   A solution of 0.1 M weak base (B) is titrated with 0.1 M of a strong acid (HA). The variation of pH of the… (with a figure)

   Try it →
9. Q9 2020 Paper 2

   An acidified solution of 0.05 M Zn$^{2+}$ is saturated with 0.1 M H$_2$S. What is the minimum molar…

   Try it →
10. Q10 2019 Paper 1

    For the following reaction, the equilibrium constant $K_c$ at 298 K is $1.6 \times 10^{17}$.…

    Try it →
11. Q11 2018 Paper 1

    The solubility of a salt of weak acid (AB) at pH 3 is Y$\times10^{-3}$ mol L$^{-1}$. The value of Y is ____.…

    Try it →
12. Q12 2018 Paper 2

    Dilution processes of different aqueous solutions, with water, are given in LIST-I. The effects of dilution…

    Try it →
13. Q13 2017 Paper 2

    For a reaction taking place in a container in equilibrium with its surroundings, the effect of temperature on…

    Try it →
14. Q14 2016 Paper 2

    PARAGRAPH 1…

    Try it →
15. Q15 2015 Paper 1

    The %yield of ammonia as a function of time in the reaction… (with a figure)

    Try it →
16. Q16 2015 Paper 2

    When 100 mL of 1.0 M HCl was mixed with 100 mL of 1.0 M NaOH in an insulated beaker at constant pressure, a…

    Try it →
17. Q17 2013 Paper 1

    The initial rate of hydrolysis of methyl acetate ($1M$) by a weak acid ($HA$, $1M$) is $1/100^{th}$ of that…

    Try it →
18. Q18 2013 Paper 2

    The thermal dissociation equilibrium of $CaCO_3(s)$ is studied under different conditions.…

    Try it →
19. Q19 2013 Paper 2

    The $K_{sp}$ of $Ag_2CrO_4$ is $1.1 \times 10^{-12}$ at $298\ K$. The solubility (in mol/L) of $Ag_2CrO_4$ in…

    Try it →
20. Q20 2011 Paper 2

    The equilibrium…

    Try it →
21. Q21 2011 Paper 2

    In 1 L saturated solution of AgCl [$K_{sp}$(AgCl) $= 1.6 \times 10^{-10}$], 0.1 mol of CuCl [$K_{sp}$(CuCl)…

    Try it →
22. Q22 2010 Paper 1

    Aqueous solutions of HNO$_3$, KOH, CH$_3$COOH, and CH$_3$COONa of identical concentrations are provided. The…

    Try it →
23. Q23 2010 Paper 1

    Amongst the following, the total number of compounds soluble in aqueous NaOH is (with a figure)

    Try it →
24. Q24 2010 Paper 1

    Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is…

    Try it →
25. Q25 2009 Paper 2

    The dissociation constant of a substituted benzoic acid at $25^\circ$C is $1.0\times10^{-4}$. The pH of a…

    Try it →
26. Q26 2008 Paper 1

    2.5 mL of $\frac{2}{5}$ M weak monoacidic base ($K_b = 1\times10^{-12}$ at 25 °C) is titrated with…

    Try it →
27. Q27 2008 Paper 2

    Solubility product constants ($K_{sp}$) of salts of types MX, MX$_2$ and M$_3$X at temperature 'T' are…

    Try it →