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mediumQ. No. 14945-the-degree-of-hydrolysis-of-a-salt-of-weak-acid-and-strong-base-depends-on

The degree of hydrolysis of a salt of weak acid and strong base depends on

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This SSC CGL Chemistry question asks: “The degree of hydrolysis of a salt of weak acid and strong base depends on” The correct answer is Both Ka and Kw. Degree of hydrolysis h = sqrt(Kw/Ka x Cm). It depends on both Ka of weak acid and Kw of water. Chemistry explains the composition, structure, properties and transformations of matter. A reliable answer begins by identifying whether the question concerns atomic structure, chemical bonding, periodicity, stoichiometry, acids and bases, redox chemistry, electrochemistry, organic nomenclature, metallurgy or everyday materials. Formulae and equations must be interpreted rather than memorised without context.

AKa only
BKw only
CBoth Ka and Kw
DpH of solution
Correct Answer: Both Ka and KwYour Answer: C

Explanation

It depends on both Ka of weak acid and Kw of water. Option A (“Ka only”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Option B (“Kw only”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Option D (“pH of solution”) is incorrect because it does not satisfy the chemical formula, reaction, periodic trend, numerical relation, oxidation state or definition required by the question. Identify the governing formula, definition or reaction and apply it consistently. The answer field, correct index and explanation therefore all identify Both Ka and Kw. Degree of hydrolysis h = sqrt(Kw/Ka x Cm).

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FAQ

SSC CGL Chemistry FAQs

Common questions and clear answers for this topic.

How many chemistry questions typically appear in the SSC CGL exam?

Chemistry usually contributes a handful of questions within the General Awareness section, generally covering basic concepts rather than calculation-heavy problems.

Which chemistry topics are most important for SSC CGL preparation?

Atomic structure, periodic table trends, acids-bases-salts, metals and non-metals, and carbon compounds are the areas that appear most consistently across past papers.

Is NCERT chemistry enough to prepare for SSC CGL?

NCERT textbooks from classes 9 and 10 cover most of the conceptual base needed, though supplementing with general knowledge about everyday chemical compounds helps too.

What is the best way to remember chemical reactions and formulas for SSC CGL?

Linking reactions to real-world examples, like rusting or antacids, makes them easier to recall than memorizing formulas in isolation.

Does the SSC CGL chemistry syllabus overlap with the school board syllabus?

Yes, a large part of the syllabus mirrors class 9 and 10 science, making school-level revision a practical starting point.

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