Question

# $$D_{2}O$$ is preferred to $$H_{2}O$$ as a moderator, in nuclear reactors because

A
D2O slows down fast neutrons better
B
D2O has high specific heat
C
D2O is cheaper
D
None of these

Solution

## The correct option is C None of these$$H_{2}O$$ absorbs neutrons and this decreases the number of neutrons for the fission process. So, $$D_{2}O$$ is preferred to $$H_{2}O$$ as a moderator, in nuclear reactors. Chemistry

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