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The atomic mass of 6 C 12 is 12.000000 u and that of 6 C 13 is 13.003354 u. The required energy to remove a neutron from 6 C 13 , if mass of neutron is 1.008665 u, will be :

1. 49.5 MeV
2. 62.5 MeV
3. 6.25 MeV
4. 4.95 MeV

Correct answer: 4.95 MeV

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