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Tardigrade
Question
Chemistry
Cadmium in a nuclear reactor acts as:
Q. Cadmium in a nuclear reactor acts as:
1578
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Bihar CECE
Bihar CECE 2003
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A
nuclear fuel
B
neutron absorber
C
a moderator
D
neutron liberator to start the chain
Solution:
(a) Nuclear fuel- Enriched
U
235
in form of
U
3
O
8
(b) Neutron absorber- Cd or B rods.
(c) A moderator-
D
2
O
or graphite.
Neutrons are absorbed by Cd or B rods to control the reaction.