Question

Which of the following statements is not true of the process of nuclear fission? A.It is the process used in most nuclear power plants. B.It only occurs in very small atoms with low mass. C.It involves the splitting of an atom’s nucleus. D.It can occur in a chain reaction.

Answer 1

The statement in option B is not correct. B is the correct answer. This is because nuclear fission usually occur in large unstable isotopes, which are bombarded with high speed particles like neutrons, which make them to split into smaller particles. The statement in option A, C and D are true about nuclear fission.

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

Nuclear fission is defined as a process in which a heavy nucleus is bombarded with a neutron(s) and it results in the formation of two nuclei with equivalent mass and magnitude and neutrons along with emission of energy.

Some characteristics of nuclear fission are as follows.

• Nuclear fission is used in nuclear power plants.
• It involves the splitting of an atom’s nucleus.
• It can occur in a chain reaction.

Thus, we can conclude that out of the given options, the statement it only occurs in very small atoms with low mass is not true of the process of nuclear fission.