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Question
Bring out the only correct statement in context with Uranium?
Options:
A .  Both U-235 and U-238 are fissile but only U-235 can sustain chain reactions
B .  Only U-235 is fissile and can sustain chain reaction but U-238 is fertile
C .  U-238 can be used in chain reactions only after extracting U-235 from it
D .  Uranium enrichment is a process where concentration of U-238 is increased using some chemical processes
Answer: Option B


C is not correct because U-238 will support chain reactions after it is converted to plutonium-239. D is also incorrect because of its concentration of U-235 that matters.


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