Question

The isotope of hydrogen, $D_2$ forms heavy water, $D_{2}O$. It is qualified as $D_{2}O$ because it is:

• A. a heavy liquid
• B. an oxide of heavier isotope of oxygen
• C. an oxide of deuterium
• D. denser than water

Answer 1

Answer: (C)

an oxide of deuterium

$D_{2}O$ or heavy water is an oxide of Deuterium, an isotope of hydrogen with a mass double to that of hydrogen. Due to this, heavy water is $10$% heavier than ordinary water. The physical and chemical properties of heavy water is similar to that of ordinary water but due to increase in mass by $10$% it has higher boiling point than ordinary water