Question

What is strong acid and weak acid.give two examples

Answer 1

Strong AcidWeak AcidStrong acids will dissociate completely to produce H+ions.
pH values will be around 0 to 1.
Most of the inorganic acids are strong acids in nature.
Ex: H2SO4, HNO3, HCl…etcWeak acids will dissociate partially to produce H+ ions.
pH values will be around 5 to 7.
All organic acids are weak acids.
Ex: CH3COOH, HNO2, H2SO3…etc

Answer 2

$\huge\textbf{Strong Acid}$
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→ Which ionised/dissolved completely in water to form H+ ions.

→ Almost all inorganic acids are strong acid.

→ Their pH value is 1 - 4 

→ Ex :- H2SO4, HNO3, HCl etc.
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$\huge\textbf{Weak Acid}$
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→ They ionised/dissolved incompletely in water to gave H+ ions.

→ Almost all organic acids are weak acid.

→ Their pH value is 5 - 7.

→ Ex :- CH3COOH, H2SO3 etc.
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