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AP EAMCET · Chemistry · General Organic Chemistry

The decreasing order of priority for the following functional groups in the IUPAC Nomenclature is
\(-\mathrm{SO}_3 \mathrm{H},-\mathrm{CN},-\mathrm{COOH},-\mathrm{OH}, \mathrm{CHO}\)

  1. A \(-\mathrm{COOH}>-\mathrm{SO}_3 \mathrm{H}>-\mathrm{CN}>-\mathrm{CHO}>-\mathrm{OH}\)
  2. B \(-\mathrm{SO}_3 \mathrm{H}>-\mathrm{COOH}>-\mathrm{CN}>-\mathrm{CHO}>-\mathrm{OH}\)
  3. C \(-\mathrm{COOH}>-\mathrm{SO}_3 \mathrm{H}>-\mathrm{CHO}>-\mathrm{CN}>-\mathrm{OH}\)
  4. D \(-\mathrm{SO}_3 \mathrm{H}>-\mathrm{COOH}>-\mathrm{CHO}>-\mathrm{CN}>-\mathrm{OH}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(-\mathrm{COOH}>-\mathrm{SO}_3 \mathrm{H}>-\mathrm{CN}>-\mathrm{CHO}>-\mathrm{OH}\)

Step-by-step Solution

Detailed explanation

The correct priority order according to their reactivity is: \(-\mathrm{COOH}>-\mathrm{SO}_3 \mathrm{H}>-\mathrm{CN}>-\mathrm{CHO}>-\mathrm{OH}\)