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Physical chemistry (water types): Heavy water is chemically what? Identify the correct formula/name used in nuclear reactors as a moderator. Choose the correct compound.

Difficulty: Easy

Deuterium oxide (D2O)
Hydrogen peroxide (H2O2)
Ordinary water (H2O)
Tritium oxide (T2O)

Correct Answer: Deuterium oxide (D2O)

Explanation:

What is being asked?
The chemical identity of heavy water.

Given data

Use: Neutron moderator in some reactors

Concept/Approach
Heavy water is deuterium oxide (D₂O), where hydrogen is replaced by its isotope deuterium (²H).

Final Answer
Deuterium oxide (D₂O)

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