Question : Heavy water is made by ______.
Option 1: dissolving salt of heavy metals in distilled water
Option 2: repeated distillation and condensation of water
Option 3: burning Deuterium in oxygen
Option 4: by burning the heavier isotope of Oxygen and Hydrogen
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Correct Answer: burning Deuterium in oxygen
Solution : The correct option is the burning of deuterium in oxygen .
Heavy water, or deuterium oxide (D 2 O), is produced by burning deuterium in oxygen. Burning deuterium (a heavy isotope of hydrogen) in oxygen-containing air can result in the production of heavy water (D 2 O) . The chemical process for deuterium combustion in the presence of oxygen may be expressed as 2D 2 + O 2 → 2D 2 O .
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