In a nuclear reactor, cadmium rods are used to __________.

absorb neutrons

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produce neutrons

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slow down neutrons

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speed up neutrons

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Solution

The correct option is B absorb neutrons
In nuclear reactors, fission of uranium is carried out by bombarding a slow moving neutron on uranium which results in emission of 3 more neutrons along with the biproducts So, cadium rods are used to absorb extra neutrons in order to achieve controlled chain reaction.

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