🏫 Board🧪 Chemistry

The pH of 1 N aqueous solutions of HCl, \(C{H}_{3}COOH\) and HCOOH follows the order:

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The pH of 1 N aqueous solutions of HCl, \(C{H}_{3}COOH\) and HCOOH follows the order:

a

\(HCl>HCOOH>C{H}_{3}COOH\)

b

\(HCl=HCOOH>C{H}_{3}COOH\)

c

\(C{H}_{3}COOH>HCOOH>HCl\)

d

\(C{H}_{3}COOH=HCOOH>HCl\)

✓ Correct answer: c)

\(C{H}_{3}COOH>HCOOH>HCl\)

Explanation

Strong acid HCl fully ionizes, giving the lowest pH. Weak acids HCOOH and CH₃COOH partially ionize, with CH₃COOH being weaker. Order: HCl < HCOOH < CH₃COOH. Correct answer: (C).

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