Q. In nuclear reactor , cadmium rods are used to control the reaction. Because

A
it slow down reaction
B
it absorbs neutrons
C
it emits neutrons
D
it neutralizes the reactor material
Solution:

Control rods are used in nuclear reactors to control the fission rate of uranium and plutonium. They are composed of chemical elements such as boron, silver, indium and cadmium that are capable of absorbing many neutrons without themselves fissioning.

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