Nuclei · Question 17

Match the LIST-I with LIST-II Choose the correct answer from the options given below:

1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-III, B-I, C-IV, D-II
4. A-II, B-I, C-IV, D-III

Answer

(2) A-III, B-I, C-II, D-IV

Solution

A. A heavy nucleus ( 235U) captures a neutron and splits into two middle-weight nuclei fission III

B. Only atoms rearrange; the nuclei are unchanged chemical reaction I

C. Two light nuclei join: Q = [2m(2H) - m(3He) - mn]c2

= [4.028204 - 4.024694] 931.5 MeV +3.27 MeV fusion with +ve Q II

D. Q = [m(1H) + m(3H) - 2m(2H)]c2

= [4.023874 - 4.028204] 931.5 MeV -4.03 MeV fusion with -ve Q IV

(atomic masses in u: 1H 1.007825, 2H 2.014102, 3H 3.016049, 3He 3.016029, n 1.008665)

A-III, B-I, C-II, D-IV

Answer: (2)