Q44 · CSIR NET Chemistry, June 2014
Paper: CSIR NET June 2014 · Subject: Inorganic Chemistry · Chapter: Nuclear Chemistry · Topic: Fission Fusion · Marks: 2 · Difficulty: Easy
The nuclides among the following, capable of undergoing fission by thermal neutrons, are (A) $^{233}\mathrm{U}$ \quad (B) $^{235}\mathrm{U}$ \quad (C) $^{239}\mathrm{Pu}$ \quad (D) $^{232}\mathrm{Th}$
(a)A, B and D
(b)A, C and D
(c)B, C and D
(d)A, B and C
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
²³³U, ²³⁵U and ²³⁹Pu are fissile with thermal neutrons; ²³²Th is fertile (needs neutron capture to ²³³U) and fissions only with fast neutrons.
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