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Question

D2O can be obtained by:

A
repeated distillation
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B
exchange process
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C
neutron emitting radioactive decay in presence of water
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D
exhaustive electrolysis of alkaline water
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Solution

The correct options are
A repeated distillation
B exchange process
D exhaustive electrolysis of alkaline water
Heavy water is deuterium oxide (D2O). Ordinary water contains a fraction (1 in 6000 parts) of heavy water. On large scale, it is produced by repeated electrolysis of ordinary water containing alkali. It is also produced by repeated distillation and condensation. It is also obtained by exchange process.

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