Chemistry
Equilibrium
Previous Years Questions

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... 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... 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... 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... 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... 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+... 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 _____________... 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... 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... 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... ## MCQ (Single Correct Answer) Dilution processes of different aqueous solutions, with water, are given in LIST - I. The effects of dilution of the solutions on $$\left[ {{H^ + }} \... Paragraph Thermal decomposition of gaseous X2 to gaseous X at 298 K takes place according to the following equations: X2 (g)$$\leftrightharpoons$$2X... Paragraph Thermal decomposition of gaseous X2 to gaseous X at 298 K takes place according to the following equations: X2 (g)$$\leftrightharpoons$$2X... ## MCQ (More than One Correct Answer) Paragraph When 100 mL of 1.0 M HCl was mixed with 100 mL of 1.0 M NaOH in an insulated beaker at constant pressure, a temperature increase of 5.7o C w... Paragraph When 100 mL of 1.0 M KCl was mixed with 100 mL of 1.0 M NaOH in an insulated beaker at constant pressure, a temperature increase of 5.7o C w... The Ksp of Ag2CrO4 is 1.1$$\times$$10-12 at 298 K. The solubility (in mol/L) of Ag2CrO4 in a 0.1 M AgNO3 solution is... The thermal dissociation equilibrium of CaCO3(s) is studied under different conditions CaCO3(s)$$\leftrightharpoons$\$ CaO(s) + CO2(g). For this equil...
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...
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

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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