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Questions  

In the given nuclear reaction A, B, C, D, E represents 

U 238 92 αTh A B βPa C D EU 234 92 

a
A = 234, B = 90, C = 234, D = 91, E = β
b
A = 234, B = 90, C = 238, D = 94, E = α
c
A = 238, B = 93, C = 234, D = 91, E = β
d
A = 234, B = 90, C = 234, D = 93,E = α

detailed solution

Correct option is A

U 238 92 →αTh 234 90 →βPa 234 91 →E -1β0U 234 92

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