In the reactor of a nuclear power plant, name the material which is used : 

(a) as a moderator 

(b) to absorb radiations 

(c) in the fuel rods 

(d) in the control rods 

(e) to carry away heat

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1 Answers

(a) Graphite

(b) Concrete

(c) Uranium-235

(d) Boron

(e) Liquid sodium

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