21H+31H→10n+ X The product X in the nuclear reaction represented is.
A
11H
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B
32He
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C
42He
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D
43Li
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E
53Li
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Solution
The correct option is C42He 42He
Fusion of deuterium and tritium creating helium - 4, freezing a neutron and releasing 17.59MeV as kinetic energy of products while a corresponding amount of mass disappears, in agreement with kinetic E=Δmc2 where Δm is the decrease in the total restass of particles.