Does Cornelius van Niel prove that the O₂ evolved by the green plant comes from carbon dioxide?

Does Cornelius van Niel prove that the O₂ evolved by the green plant comes from carbon dioxide?
  1. Yes
  2. No
  3. May be
  4. None of the above

Solution

Cornelius van Niel inferred that the O₂ evolved by the green plant comes from H₂O and not from carbon dioxide. This was later proved using radioisotopic techniques.

Asked in: NCERT

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