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TS EAMCET · Chemistry · General Organic Chemistry

The structure of PCC is

  1. A \(\mathrm{C}_6 \mathrm{H}_5 \stackrel{\oplus}{\mathrm{N}} \mathrm{HCrO}_2 \mathrm{Cl}^{\ominus}\)
  2. B \(\mathrm{C}_6 \mathrm{H}_5 \stackrel{\oplus}{\mathrm{N}} \mathrm{HCrO}_3 \mathrm{Cl}^{\ominus}\)
  3. C \(\mathrm{C}_5 \mathrm{H}_5 \stackrel{\oplus}{\mathrm{N}} \mathrm{HCrO}_2 \mathrm{Cl}^{\ominus}\)
  4. D \(\mathrm{C}_5 \mathrm{H}_5 \stackrel{\oplus}{\mathrm{N}} \mathrm{HCrO}_3 \mathrm{Cl}^{\ominus}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\mathrm{C}_5 \mathrm{H}_5 \stackrel{\oplus}{\mathrm{N}} \mathrm{HCrO}_3 \mathrm{Cl}^{\ominus}\)

Step-by-step Solution

Detailed explanation

Pyridinium chlorochromate (PCC) can be prepared by the dissolution of chromium trioxide in aqueous \(\mathrm{HCl}\). Addition of pyridine gives pridinium chlorochromate as orange cryotol. PCC offers the advantage of the selective oxidation of alcohols to aldehydes, whereas many…