Question:

What is D in the following sequence of reactions?

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PCC (Pyridinium chlorochromate) is used to oxidize primary alcohols to aldehydes without further oxidation to carboxylic acids.
Updated On: Jan 12, 2026
  • A
  • B
  • C
  • D
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The Correct Option is A

Solution and Explanation

Step 1: Analyze the reaction sequence.
The reaction sequence involves reduction of aldehyde to alcohol with sodium borohydride, followed by oxidation with PCC to form the aldehyde.
Step 2: Conclusion.
Thus, the compound D is CHO.
Final Answer: \[ \boxed{\text{CHO}} \]
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