Question

Write about the exchange reactions of deuterium.

Answer 1

Due to the acidic nature of α hydrogens they can be exchanged with deuterium by reaction with D2O (heavy water). The process is accelerated by the addition of an acid or base; an excess of D2O is required. The end result is the complete exchange of all α hydrogens with deuteriums. 

Answer 2

Exchange  reactions are those reactions in which the protium of water is replaced by deuterium .

Explanation:

Normal water = H₂O

Heavy water

1. It is a water that contains the isotopic form oh Hydrogen that is H₁² (deuterium ).
2. It is formed after prolonged electrolysis of normal water .
3. Due to the acidic nature of alpha  hydrogens they can be exchanged with deuterium by reaction with D₂O (heavy water).
4. The rate of this can be increased by  acid or base; an adding acid or a base .Also, the  excess of D₂O is required.
5. As a result all Protium hydrogen are converted to deuterium.

The exchange reactions shown are :

Na + D₂O --> NaOD + D₂

CO₂ + D₂O ---> D₂CO₃

NaCl + D₂O---> NaOD + Cl₂