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Number of Deuterium exchange in the given tautomer when the compound is kept in N a O D / D 2 O for a long time is:

Options

  1. A2
  2. B4
  3. C6
  4. D8

Correct answer

A. 2

Step-by-step solution

Deuterium exchange takes place with H present at α -position. Total α − H   =   2

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