D₂O is used in nuclear reactors-
- AAs an engine
- BAs a source of deuterons
- CAs a moderator
- DMore than one of the above
- ENone of the above
Show answer and explanation
Correct answer: (c) As a moderator
Explanation
Heavy water (D₂O) is used in nuclear reactors as a moderator: it slows down the fast neutrons from fission so that they can split more uranium-235 nuclei.
In India's pressurised heavy water reactors, it also serves as the coolant.