In the following nuclear reaction, D → α D 1 → β - D 2 → α D 3 →…

In the following nuclear reaction,
DαD1β-D2αD3γD4
Mass number of D is 182 and atomic number is 74 . Mass number and atomic number of D4 respectively will be
  1. 174 and 71
  2. 174 and 69
  3. 172 and 69
  4. 172 and 71

Solution

Equivalent reaction can be written as DD4+2α+β-+γ

So, mass number of D4=mass number of D-2×4=182-8=174

Atomic number of D4=atomic number of D-2×2+1=74-4+1=71

The reaction is 

D74182αD172178β-D273178αD371174γD471174

Asked in: JEE Main 2022 (29 Jun Shift 2)

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