JEE Chemistry - Nuclear Chemistry

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Question - 1

What is the highest n/p ratid imong all radioactive elements?

  • A 5
  • B 4
  • C 3
  • D 2

Question - 2

what is the atomic mass of uranium (isotope), that is most stable?

  • A 239
  • B 240
  • C 241
  • D 238

Question - 3

Calculate the packing fraction of 26Fe56 (Isotopic mass of Fe =55.92066)

  • A - 14.15
  • B - 14.12
  • C - 14.19
  • D - 14.17

Question - 4

In the nuclear fission reaction: 1H2 +1H12He4 the masses of 1H2 and 2He are 2.014 amu and 4.003 amu respectively. What is the energy released (in MeV) per atom of helium formed?

  • A 22.29
  • B 23.21
  • C 23.28
  • D 23.29

Question - 5

The mass of helium atom is 4.0026 amu while that of the neutron and proton are  1.0087 amu and 1.0078 amu respectively. What is the nuclear binding energy per nucleon in the helium atom (in MeV)?

  • A 7.03
  • B 7.05
  • C 7.09
  • D 7.08

Question - 6

The binding energy of deutron (1H2) is 1.15MeV per nucleon and an alpha particle (2He4) has a binding energy of 7. 1 Mev per nucleon. Then in the reaction  1H2 +1H12He4+Q . The energy Q is released MeV is _____________

  • A 22.8
  • B -22.8
  • C 23.8
  • D -23.8

Question - 7

In the sequence of following nuclear reactions  the value of n will be ___________

  • A 1
  • B 2
  • C 3
  • D 4

Question - 8

The relative inoizing power of \(\alpha\) rays is n times to that of \(\beta\) rays and the same of beta rays n times to that of \(\gamma\) rays. What is the value of n?

  • A 150
  • B 50
  • C 200
  • D 100

Question - 9

When radium loses an \(\alpha\)-particle, the new element will be placed in the group ____________

  • A 16
  • B 15
  • C 17
  • D 18

Question - 10

According to modern periodic table, find the group number ofthe product formed (E) in the following scheme: 

  • A 4
  • B 5
  • C 3
  • D 2