Multiple choice

'Heavy water' is used

  1. in car radiators

  2. in nuclear reactors

  3. as a coolant in refrigerators

  4. for dry cleaning purposes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Heavy water (D2O) contains deuterium instead of normal hydrogen and is used as a moderator in nuclear reactors. It slows down neutrons effectively, allowing controlled nuclear fission, crucial for reactors like those in India's nuclear program.

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