Equilibrium · Chemistry · JEE Advanced

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MCQ (Single Correct Answer)

JEE Advanced 2023 Paper 1 Online
On decreasing the $p \mathrm{H}$ from 7 to 2 , the solubility of a sparingly soluble salt (MX) of a weak acid (HX) increased from $10^{-4} \mathrm{~mo...
JEE Advanced 2018 Paper 2 Offline
Dilution processes of different aqueous solutions, with water, are given in LIST - I. The effects of dilution of the solutions on $$\left[ {{H^ + }} \...
JEE Advanced 2016 Paper 2 Offline
Paragraph Thermal decomposition of gaseous X2 to gaseous X at 298 K takes place according to the following equations: X2 (g) $$\leftrightharpoons$$ 2X...
JEE Advanced 2016 Paper 2 Offline
Paragraph Thermal decomposition of gaseous X2 to gaseous X at 298 K takes place according to the following equations: X2 (g) $$\leftrightharpoons$$ 2X...
IIT-JEE 2008 Paper 2 Offline
Solubility product constants (K$$_{sp}$$) of salts of types MX, MX$$_2$$ and M$$_3$$X at temperature T are 4.0 $$\times$$ 10$$^{-8}$$, 3.2 $$\times$$ ...
IIT-JEE 2008 Paper 1 Offline
2.5 mL of $$\frac{2}{5}$$M weak monoacidic base (K$$_b$$ = 1 $$\times$$ 10$$^{-12}$$ at 25$$^\circ$$C) is titrated with $$\frac{2}{15}$$M HCl in water...
IIT-JEE 2008 Paper 1 Offline
Statement 1 : For every chemical reaction at equilibrium, standard Gibbs energy of reaction is zero. and Statement 2 : At constant temperature and pre...

Numerical

JEE Advanced 2023 Paper 1 Online
The plot of $\log k_f$ versus $1 / T$ for a reversible reaction $\mathrm{A}(\mathrm{g}) \rightleftharpoons \mathrm{P}(\mathrm{g})$ is shown. Pre-expon...
JEE Advanced 2022 Paper 2 Online
Concentration of $\mathrm{H}_{2} \mathrm{SO}_{4}$ and $\mathrm{Na}_{2} \mathrm{SO}_{4}$ in a solution is $1 \mathrm{M}$ and $1.8 \times 10^{-2} \mathr...
JEE Advanced 2022 Paper 1 Online
A solution is prepared by mixing $0.01 \mathrm{~mol}$ each of $\mathrm{H}_{2} \mathrm{CO}_{3}, \mathrm{NaHCO}_{3}, \mathrm{Na}_{2} \mathrm{CO}_{3}$, a...
JEE Advanced 2020 Paper 2 Offline
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 solution with the volume of HA added is sho...
JEE Advanced 2020 Paper 2 Offline
An acidified solution of 0.05 M Zn2+ is saturated with 0.1 M H2S. What is the minimum molar concentration (M) of H+ required to prevent the precipitat...
JEE Advanced 2020 Paper 1 Offline
Consider the reaction,A $$\rightleftharpoons $$ Bat 1000 K. At time t', the temperature of the system was increased to 2000 K and the system was allo...
JEE Advanced 2019 Paper 1 Offline
For the following reaction, the equilibrium constant Kc at 298 K is 1.6 $$ \times $$ 1017.Fe2+(aq) + S2-(aq) ⇌ FeS(s)When equal volumes of 0.06 M Fe2+...
JEE Advanced 2018 Paper 1 Offline
The solubility of a salt of weak acid $$(AB)$$ at $$pH\,$$ $$3$$ is $$Y \times {10^{ - 3}}$$ $$mol\,{L^{ - 1}}.$$ The value of $$Y$$ is _____________...
JEE Advanced 2018 Paper 1 Offline
A closed tank has two compartments $$A$$ and $$B,$$ both filled with oxygen (assumed to be ideal gas). The partition separating the two compartments i...
IIT-JEE 2011 Paper 2 Offline
In 1 L saturated solution of AgCl [Ksp(AgCl) = 1.6 $$\times$$ 10-10], 0.1 mol of CuCl [Ksp(CuCl) = 1.0 $$\times$$ 10-6] is added. The resultant concen...
IIT-JEE 2010 Paper 1 Offline
Amongst the following the total number of compounds whose aqueous solution turns red litmus paper blue is KCN, K2SO4, (NH4)2C2O4, NaCl, Zn(NO3)2, FeCl...
IIT-JEE 2009 Paper 2 Offline
The dissociation constant of a substituted benzoic acid at 25$$^\circ$$C is 1.0 $$\times$$ 10$$^{-4}$$. The pH of a 0.01 M solution of its sodium salt...

MCQ (More than One Correct Answer)

JEE Advanced 2015 Paper 2 Offline
Paragraph 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 temperature increase of 5.7o C w...
JEE Advanced 2015 Paper 2 Offline
Paragraph When 100 mL of 1.0 M KCl was mixed with 100 mL of 1.0 M NaOH in an insulated beaker at constant pressure, a temperature increase of 5.7o C w...
JEE Advanced 2013 Paper 2 Offline
The Ksp of Ag2CrO4 is 1.1 $$\times$$ 10-12 at 298 K. The solubility (in mol/L) of Ag2CrO4 in a 0.1 M AgNO3 solution is...
JEE Advanced 2013 Paper 2 Offline
The thermal dissociation equilibrium of CaCO3(s) is studied under different conditions CaCO3(s) $$\leftrightharpoons$$ CaO(s) + CO2(g). For this equil...
JEE Advanced 2013 Paper 1 Offline
The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is 1/100th of that of a strong acid (HX, 1M), at 25oC. The Ka of HA is...
IIT-JEE 2010 Paper 1 Offline
Aqueous solution of HNO3, KOH and CH3COOH and CH3COONa of identical concentrations are provided. The pairs of solutions which form a buffer upon mixin...

Subjective

IIT-JEE 1999
When 3.06 g of solid NH4HS is introduced into a two litre evacuated flask at 27o C, 30% of the solid decomposes into gaseous ammonia and hydrogen sulp...
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