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Ionic Equilibrium

19 questions · Chemistry · JEE Advanced

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JEE Advanced
Chemistry
Ionic Equilibrium

Ionic Equilibrium

19 questions · Chemistry · JEE Advanced

At 25 °C, the concentration of $H^{+}$ ions in 1.00 × 10−3 M aqueous solution of a weak monobasic acid having acid dissociation constant (Ka) of 4.00 × 10−11 is X × 10−7 M. The value of X is . Use: Ionic product of…2025 · Shift 1 · Q9 · Numerical
The solubility of barium iodate in an aqueous solution prepared by mixing 200 mL of 0.010 M barium nitrate with 100 mL of 0.10 M sodium iodate is $X \times 1 0^{- 6} mol dm^{- 3}$ . The value of $X$ …2025 · Shift 2 · Q10 · Numerical
On decreasing the $p H$ from 7 to 2 , the solubility of a sparingly soluble salt (MX) of a weak acid (HX) increased from $1 0^{- 4} mol L^{- 1}$ to $1 0^{- 3} mol L^{- 1}$ . The $p K_{a}$ …2023 · Shift 1 · Q6 · MCQ
A solution is prepared by mixing $H_{2} CO_{3}, NaHCO_{3}, Na_{2} CO_{3}$ each of $H_{2} CO_{3}, NaHCO_{3}, Na_{2} CO_{3}$ , and $NaOH$ in $p H$ of water. $p H$ of the resulting…2022 · Shift 1 · Q3 · Numerical
Concentration of $H_{2} SO_{4}$ and $Na_{2} SO_{4}$ in a solution is $1 M$ and $1.8 \times 1 0^{- 2} M$ , respectively. Molar solubility of $PbSO_{4}$ in the same solution is $X \times 1 0^{- Y} M$ …2022 · Shift 2 · Q1 · Numerical
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 shown in the figure below. What is the pKb of the base? The neutralisation reaction is given… Includes diagram2020 · Shift 2 · Q13 · Numerical
An acidified solution of 0.05 M $Z n^{2 +}$ is saturated with 0.1 M $H_{2} S$ . What is the minimum molar concentration (M) of $H^{+}$ required to prevent the precipitation of $Z n S$ ? Use Ksp( $Z n S$ ) = 1.25 $\times$ 10 $-$ 22 and overall…2020 · Shift 2 · Q18 · Numerical
The solubility of a salt of weak acid $(A B)$ at $Y \times 1 0^{- 3} m o l L^{- 1} .$ is $Y \times 1 0^{- 3} m o l L^{- 1} .$ The value of $Y$ is . (Given that the value of solubility product of $A B$ $(K_{s p}) = 2 \times 1 0^{- 10}$ …2018 · Shift 1 · Q9 · Numerical
Dilution processes of different aqueous solutions, with water, are given in LIST - I. The effects of dilution of the solutions on $[H^{+}]$ are given in LIST - II (Note: Degree of dissociation (a) of weak acid and weak… Includes table2018 · Shift 2 · Q15 · MCQ
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 was measured for the beaker and its contents (Expt. 1). Because the enthalpy of…2015 · Shift 2 · Q5 · Multiple correct
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 was measured for the beaker and its contents (Expt. 1). Because the enthalpy of…2015 · Shift 2 · Q6 · Multiple correct
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 is2013 · Shift 1 · Q4 · Multiple correct
The Ksp of $A g_{2} C r O_{4}$ is 1.1 $\times$ 10-12 at 298 K. The solubility (in mol/L) of $A g_{2} C r O_{4}$ in a 0.1 M $A g N O_{3}$ solution is2013 · Shift 2 · Q6 · Multiple correct
In 1 L saturated solution of $A g C l$ [Ksp( $A g C l$ ) = 1.6 $\times$ 10-10], 0.1 mol of $C u C l$ [Ksp( $C u C l$ ) = 1.0 $\times$ 10-6] is added. The resultant concentration of $A g^{+}$ in the solution is 1.6 $\times$ 10-x. The value of "x" is2011 · Shift 2 · Q6 · Numerical
Aqueous solution of $H N O_{3}$ , $K O H$ and $C H_{3} C O O H$ and $C H_{3} C O O N a$ of identical concentrations are provided. The pairs of solutions which form a buffer upon mixing is(are)2010 · Shift 1 · Q4 · Multiple correct
Amongst the following the total number of compounds whose aqueous solution turns red litmus paper blue is $K C N$ , $K_{2} S O_{4}$ , $(N H_{4})_{2} C_{2} O_{4}$ , $N a C l$ , $Z n (N O_{3})_{2}$ , $F e C l_{3}$ , $K_{2} C O_{3}$ , $N H_{4} N O_{3}$ and $L i C N$ 2010 · Shift 1 · Q5 · Numerical
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 is .2009 · Shift 2 · Q14 · Numerical
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 at 25 $^{\circ}$ C. The concentration of H $^{+}$ at equivalence point is (K $_{w}$ = 1 $\times$ …2008 · Shift 1 · Q7 · MCQ
Solubility product constants (K $_{s p}$ ) of salts of types MX, MX $_{2}$ and M $_{3}$ X at temperature T are 4.0 $\times$ 10 $^{- 8}$ , 3.2 $\times$ 10 $^{- 14}$ and 2.7 $\times$ 10 $^{- 15}$ , respectively. Solubilities (mol dm $^{- 3}$ …2008 · Shift 2 · Q10 · MCQ