How can D_2O be prepared from water? Mention the physical properties in which D_2O differs from H_2O. Give at least three reactions of D_2Oshowing the exchange of Hydrogen with deuterium.

 

Answers (1)

Extended electrolysis of water can produce D2O; it differs from water as it has a high molecular mass.

    H_2O

D_2O

1. Boiling Point 373K 373.4K
2. Melting Point 273K 276.8K
3. Molecular Mass 18.016 20.3

Reactions showing the exchange of Hydrogen with deuterium

  • NaOH + D_{2}O \rightarrow NaOD + HOD
  • HCl + D_{2}O \rightarrow DCl + HOD
  • NH_{4}Cl + D_{2}O \rightarrow NH_{3}DCl + HOD

 

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