Q.

When a uranium isotope U92235 is bombarded with a neutron, it generates Kr3689, three neutrons and              [2020]
 

1 Ba56144  
2 Zr4091  
3 Kr36101  
4 Kr36103  

Ans.

(1)

U23592+n10Kr8936+3n01+XAZ

92+0=36+Z    Z=56

Now, 235+1=89+3+A    A=144

So, Ba14456 is generated.