Chemistry · JEE

Important Questions: Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions for JEE

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The most important Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions questions for JEE cover conceptual traps, standard results, and numerical patterns from Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions. Goodmarks provides 11+ high-yield MCQs with full solutions.

Focus on what matters most. These important Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions questions cover high-weightage concepts from Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions — the topics JEE repeats every year.

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Part of Equilibrium in JEE Main Chemistry.

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Q1ChemistryUnit 6: Equilibrium

100ml of a solution of HCl with pH value 3 is diluted with

400 \mathrm{ml}

of water. The new pH of the solution is?

Q2ChemistryUnit 6: Equilibrium

A solution contains

10 \mathrm{mL}

0.1 \mathrm{N}

NaOH and

10 \mathrm{mL}

0.05 \mathrm{Na}_{2} \mathrm{SO}_{4} .

pH of this solution is

Q3ChemistryUnit 6: Equilibrium

K_{a}

for acetic acid in water is

1.7 \times

10^{-5}

25^{\circ} \mathrm{C} .

The

\mathrm{pH}

of a mixture of 25

\mathrm{ml}

0.02 \mathrm{N}

acetic acid and

2.5 \mathrm{ml}

of 0.1N NaOH (neglecting volume change) will be

(\log 1.7=0.23)

Q4ChemistryUnit 6: Equilibrium

A solution having hydrogen ion concentration is

0.0005 g

eqvt/litre, its

p O H

Q5ChemistryUnit 6: Equilibrium

Assertion At

25^{\circ} C

, the pH of

10^{-8} M

HClis 8 Reason pH of acidic solution is always below 7

\operatorname{at} 25^{\circ} C

Q6ChemistryUnit 6: Equilibrium

p H

of water is 7 when any substance

Y

is dissolved in water then

p H

becomes 13. Substance

Y

is a salt of:

Q7ChemistryUnit 6: Equilibrium

Oxides of sulphur present in the atmosphere are washed down by rain and would result in:

Q8ChemistryUnit 6: Equilibrium

The pH of

D_{2} O

and

H_{2} O

298 \mathrm{K}

is:

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What makes a Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Equilibrium are high-weightage?

Key areas include Ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, the solubility of sparingly soluble salts, solubility products and buffer solutions. Prioritise these before moving to edge cases.

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