Which of the following is not a strong acid?

H₂SO₄

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CH₃COOH

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HNO₃

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HCl

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Solution

The correct option is B
CH₃COOH

${C H}_{3} C O O H$ is not a strong acid because it does not dissociate completely to $H^{+}$ ions.

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HCl, {CH}_{3} COOH, H_{2} {SO}_{4}, {HNO}_{3}, H_{2} {CO}_{3}, H_{2} {SO}_{3}

HCl, H_{2} {SO}_{4} and {HNO}_{3}

Find the odd-man-out.

(a) HNO₃, H₂SO₄, HCl, Na₂CO₃

(b) MgO, CaO, H₂O, Na₂O

(d) NaCl, C₁₂H₂₂O₁₁, KCl, CuSO₄

(e) HCl, H₂SO₄, HNO₃, CH₃COOH

H C l, H_{2} S O_{4}, H N O_{3}, H B r o r H C l O_{4}

\begin{matrix} Column - I & Column - II (Enthalpy change in kcal) & (Neutralisation) (A) & < 13.7 kcal & (p) & H C l (1 m o l) + N a O H (1 m o l) (B) & = 13.7 kcal & (q) & H F (1 m o l) + N a O H (1 m o l) (C) & > 13.7 kcal & (r) & N H_{4} O H (1 m o l) + H C l (1 m o l) (D) & = 27.4 kcal & (s) & N a O H (2 m o l) + H_{2} S O_{4} (1 m o l) (t) & N a O H (1 m o l) + C H_{3} C O O H (1 m o l) \end{matrix}

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