Mock Test on Ionic Equilibria Chemistry 2023

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This Test Contains 20 Questions from the Ionic Equilibria Quick Practicing Mock Test for the better remembering. Best of Luck. With Love!!

The Subtopics of the Ionic Equilibria

Types of electrolyte
Acids and Bases
Ionization of acids and bases
Autoionization of water
pH Scale Hydrolysis of salts
Buffer solutions
Solubility product
Common ion effect

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Created on February 02, 2022 By

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Ionic Equilibria

The equilibrium between ions and unionized molecules in solution is called ionic equilibrium. The principles of chemical equilibrium we studied in standard XI will be applied to ionic equilibria. In this chapter with the help of these principles we determine equilibrium constants and concentrations of ions and unionized species. In particular examine the following ionic equilibria:

H⁺ and OH^- ions and unionized water molecules.
Ionization of weak acids and weak bases.
Reactions between ions of salts and ions of water.
Solid salt and its ions in water.

1 / 20

According to the bronsted-lowry theory, base is substance that____.

Donate the proton to another substance

accepts electron pair

contains OH group

accepts a proton from another substance.

2 / 20

WHICH OF THE FOLLOWING IS ADDED TO COMMERCIAL JAMS AND JELLIES TO INCREASE THEIR SHELF LIFE?

Magnesium hydroxide

sodium acetate

tartaric acid

sodium benzoate

3 / 20

An acidic buffer solution is prepared by mixing_____.

Weak acid + its salt of strong base

strong acid + it's salt of weak base

weak acid + its salt of weak base

strong acid + its salt of strong base

4 / 20

The number of moles of a compound that is all to give a litre of saturated solution is called its_____.

Molar solubility

solubility product

ionic product

effective concentration

5 / 20

Identify the INCORRECT statement.

the equilibrium between ions and unionized molecules in solution is called ionic equilibrium

The equilibrium between solid salt and its ions in water is an example of physical equilibrium

The reactions between ions of salt and ions of water involve ionic equilibrium

The principles of chemical equilibrium can also be applied to ionic equilibrium

6 / 20

The H⁺ion concentration of a solution is 0.1 M. Its pH is_____.

0.01

0.1

1.0

7 / 20

What is the pH of one litre buffer solution containing 0.1 mole of CH3COOH and 0.1 mole of CH3COONa? [pK_a of acid = 4.74]

3.04

3.74

4.35

4.74

8 / 20

In its 0.2 M solution, a weak monoprotic acid ionises to an extent of 60 %. Its hydrogen ion concentration is

0.6 M

0.2 M

0.12 M

None of the above

9 / 20

The pH of 10^-5M KOH solute will be____.

10 / 20

The pH of 1 millimolar HCL solution is __.

11 / 20

An acidic buffer solution can be prepared by mixing the solutions of_____.

sodium chloride and sodium hydroxide

sulphuric acid and sodium sulphate

ammonium chloride and ammonium hydroxide

ammonium acetate and acetic acid

12 / 20

How many grams of NaOH must be dissolved in 1 L of solution of give it a pH value of 11?

0.04 g

0.1 g

0.4 g

0.01 g

13 / 20

When a weak monobasic acid is dissolved in water, the degree of dissociation is directly proportional to the_____.

volume of the solution

square root of its concentration

concentration of the solution

square root of the volume of solution

14 / 20

NH4Cl solution is_____.

acidic

alkaline

amphoteric

neutral

15 / 20

Which of the following electrolyte dissociates only partially in dilute aqueous solutions?

Fe(OH)3

KOH

НІ

KCN

16 / 20

The H⁺ions in the aqueous solution exists in the form of____.

hydroxide ions

hydronium ions

oxide ions

hydride ions

17 / 20

According to the Arrhenius theory, acid is a substance that____.

gives H+ions in aqueous solution

gives OH- in aqueous solution

contsind OH group

accepts an electron pair

18 / 20

The compound whose aqueous solution has the highest pH is _____.

Na2CO3

NaCL

CuSO4

NaSO4

19 / 20

Select the INCORRECT statement.

H2O acts as a base towards HCI.

All Bronsted bases are also Lewis bases.

H+ is a Lewis base.

Arrhenius theory is applicable only to aqueous solutions.

20 / 20

Which of the following is NOT a weak acid

HCOOH

HCIO4

H2S

Your score is

The average score is 47%

MILIND

November 15, 2022 at 6:03 am

Hard

DOMOCKTEST

The Subtopics of the Ionic Equilibria

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