iCON Education - Ionic Equilibrium TS-EAMCET Test

Question 1: Palette 1/16

TS-EAMCET 2025 MCQ

The volume of water required to dissolve $0.1 \mathrm{~g} \mathrm{PbCl}_2$ to get a saturated solution (in mL ) is (Given $K_{s p}\left(\mathrm{PbCl}_2\right)=3.2 \times 10^{-8}$; Atomic mass of $\mathrm{Pb}=207 \mathrm{u}$ )

150

100

120

180

Question 2: Palette 2/16

TS-EAMCET 2025 MCQ

At $T(\mathrm{~K})$ in a saturated solution of $\mathrm{MgCO}_3$ and $\mathrm{Ag}_2 \mathrm{CO}_3$, if the concentration of $\mathrm{Mg}^{2+}$ ion is $3.2 \times 10^{-5} \mathrm{M}$, then the concentration of $\mathrm{Ag}^{+}$ion in the solution will be [Given, $K_{\mathrm{sp}}\left(\mathrm{MgCO}_3\right)=1.6 \times 10^{-6}$ and $K_{\mathrm{sp}}\left(\mathrm{Ag}_2 \mathrm{CO}_3\right)=8.0 \times 10^{-12}$ at $T(\mathrm{~K})$ ]

$\sqrt{1.3} \times 10^{-7} \mathrm{M}$

$\sqrt{1.5} \times 10^{-6} \mathrm{M}$

$\sqrt{1.6} \times 10^{-6} \mathrm{M}$

$\sqrt{1.6} \times 10^{-5} \mathrm{M}$

Question 3: Palette 3/16

TS-EAMCET 2025 MCQ

200 mL of an aqueous solution of $\mathrm{HCl}(\mathrm{pH}=2)$ is mixed with 300 mL of aqueous solution of NaOH $(\mathrm{pH}=12)$ and is diluted to 1.0 L . The pH of the resulting solution is ( $\mathrm{pH}=2$ )

10.3

11.0

11.3

11.7

Question 4: Palette 4/16

TS-EAMCET 2024 MCQ

At $27^{\circ} \mathrm{C}, 100 \mathrm{~mL}$ of 0.5 M HCl is mixed with 100 mL of 0.4 M NaOH solution. To this resultant solution, 800 mL of distilled water is added. What is the pH of final solution?

12.0

2.0

1.3

1.0

Question 5: Palette 5/16

TS-EAMCET 2023 MCQ

At 298 K the molar solubility of $\mathrm{Cd}(\mathrm{OH})_2$ in $0.1 \mathrm{M} \mathrm{KOH}_{\mathrm{OH}}$ solution is $x \times 10^{-y}$. The values of $x$ and $y$ are respectively.

(At $298 \mathrm{~K}, K_{s p}$ of $\mathrm{Cd}(\mathrm{OH})_2=2.5 \times 10^{-14}$ )

$2.5,14$

25,13

25,14

$2.5,16$

Question 6: Palette 6/16

TS-EAMCET 2023 MCQ

Which of the following does not form a buffer solution?

$\mathrm{NH}_3+\mathrm{HCl}$ (2:1 mole ratio)

$\mathrm{CH}_3 \mathrm{CO}_2 \mathrm{H}+\mathrm{NaOH}$ ( $2: 1$ mole ratio)

$\mathrm{NaOH}+\mathrm{CH}_3 \mathrm{COOH}$ (1:1 mole ratio)

$\mathrm{NH}_4 \mathrm{Cl}+\mathrm{NH}_3$ (1:1 mole ratio)

Question 7: Palette 7/16

TS-EAMCET 2023 MCQ

Assertion (A) $\mathrm{p} K_a$ of phenol is 4.19 and that of benzoic acid is 10 .

Reason (R) Phenoxide ion is stabilised by non-equivalent resonance structures whereas benzoate ion by two equivalent resonance structures.

The correct option among the following is

$A$ and $R$ are true and $R$ is the correct explanation of $A$.

$A$ and $R$ are true, but $R$ is not the correct explanation for $A$.

$A$ is true but $R$ is false.

A is false but $R$ is true.

Question 8: Palette 8/16

TS-EAMCET 2023 MCQ

A solution is prepared by mixing 10 mL of 1.0 M acetic acid and 20 mL of 0.5 M sodium acetate and diluted to 100 mL . If the $\mathrm{p} K_a$ of acetic acid is 4.76, then the pH of the solution is

4.76

3.76

5.76

9.24

Question 9: Palette 9/16

TS-EAMCET 2022 MCQ

Ammonia is a Lewis base because it is

electron pair donor

electron pair acceptor

proton donor

proton acceptor

Question 10: Palette 10/16

TS-EAMCET 2022 MCQ

How many of the following are diprotic acids? Citric acid, chromic acid, oxalic acid, pyrosulphuric acid, sulphurous acid

Question 11: Palette 11/16

TS-EAMCET 2022 MCQ

$ \text { Match the following } $

$ \text { Metal sulphide } $		$ \text { Solubility product } $
(A)	$ \mathrm{PbS} $	(I)	$ 4.0 \times 10^{-53} $
(B)	$ \mathrm{HgS} $	(II)	$ 8.0 \times 10^{-28} $
(C)	$ \mathrm{MnS} $	(III)	$ 1.6 \times 10^{-24} $
(D)	$ \mathrm{ZnS} $	(IV)	$ 2.5 \times 10^{-13} $

$ \text { The correct match is } $

A	B	C	D
I	II	III	IV

A	B	C	D
II	I	IV	III

A	B	C	D
II	III	IV	I

A	B	C	D
III	IV	I	II

Question 12: Palette 12/16

TS-EAMCET 2022 MCQ

$ \text { Match the following. } $

List I		List II
A	Aqueous solution of $\mathrm{AlCl}_3$	I	Basic
B	Aqueous solution $\mathrm{CH}_3 \mathrm{COONa}$	II	Acidic
C	Aqueous solution of KCl	III	Highly conductive
D	$\mathrm{Al}_2 \mathrm{O}_3$	IV	Strongly basic
		V	Amphoteric

$ \text { The correct match is } $

A	B	C	D
II	I	III	V

A	B	C	D
I	III	IV	V

A	B	C	D
III	II	I	V

A	B	C	D
IV	V	II	I

Question 13: Palette 13/16

TS-EAMCET 2022 MCQ

The pH of pure water at $80^{\circ} \mathrm{C}$ is

7.0

$\infty$

$>7.0$

$<7.0$

Question 14: Palette 14/16

TS-EAMCET 2020 MCQ

The pH of the solution, when

(i) sodium acetate is dissolved in water.

(ii) ammonium chloride is dissolved in water.

(i) $\mathrm{pH}>7$ (ii) $\mathrm{pH}<7$

(i) $\mathrm{pH}=7$ (ii) $\mathrm{pH}=0$

(i) $\mathrm{pH}>7$ (ii) $\mathrm{pH}>7$

(i) $\mathrm{pH}<7$ (ii) $\mathrm{pH}>7$

Question 15: Palette 15/16

TS-EAMCET 2020 MCQ

Calculate the molar solubility of calcium hydroxide $\mathrm{Ca}(\mathrm{OH})_2$ in 0.10 M NaOH solution. The ionic product of calcium hydroxide is $5.5 \times 10^{-6}$.

$11 \times 10^{-6}$

$5.5 \times 10^{-4}$

5.5

Question 16: Palette 16/16

TS-EAMCET 2020 MCQ

Match the given ionisation constant values with the corresponding acids.

$ \begin{array}{lll} \hline \text { A. } & \mathrm{HI} & \text { (i) } 3.2 \times 10^9 \\ \hline \text { B. } & \mathrm{HF} & \text { (ii) } 3.5 \times 10^{-4} \\ \hline \text { C. } & \mathrm{HCl} & \text { (iii) } 1.3 \times 10^6 \\ \hline \text { D. } & \mathrm{HBr} & \text { (iv) } 1.0 \times 10^9 \\ \hline \end{array} $

$ \text { The correct match is } $

A	B	C	D
(i)	(ii)	(iii)	(iv)

A	B	C	D
(ii)	(iii)	(iv)	(i)

A	B	C	D
(iv)	(iii)	(ii)	(i)

A	B	C	D
(ii)	(i)	(iii)	(iv)