A. Hard water
B. Heavy water
C. Mineral water
D. None of these
🧠 Explanation:
Deuterium oxide, known as heavy water, is a form of water with a higher concentration of deuterium, a hydrogen isotope. Used in nuclear reactors to moderate neutrons, it’s critical for sustaining chain reactions in certain designs. Its unique properties make it valuable in scientific research, particularly in physics and chemistry. Heavy water’s production is complex, requiring specialized processes, reflecting its importance in energy and science. Its role in nuclear technology underscores its strategic significance, while its study enhances understanding of isotopic chemistry, supporting advancements in energy production and scientific exploration globally.
