We do not use the plutonium (Pu) from reprocessed / used nuclear fuel because Plutonium has high rate of spontaneous fission and Uranium is the main fuel which is used for nuclear reactor.
What is Nuclear reactor ?
A nuclear reactor is a device which is used to initiate and control a chain reaction to release large amount of steady heat there by produces energy.
Thus from above conclusion we can say that We do not use the plutonium (Pu) from reprocessed / used nuclear fuel because (i) Plutonium has high rate of spontaneous fission and (ii) Uranium is the main fuel which is used for nuclear reactor.
Learn more about the Nuclear reactor here: https://brainly.com/question/23160065
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