Question

Which of these statements is/are true?

	a.	Nuclear fission releases tremendous amounts of energy because breaking a nucleus apart into its constituent protons and neutrons releases energy
	b.	The disasters at both Chernobyl and Fukushima were made worse by the generation and explosion of H
	c.	A high mass defect per nucleon corresponds to a high binding energy per nucleon.
		d. When a nuclide emits a beta particle the net result is that a proton is converted to a neutron.

Answer 1

A) False.

actually when a neutron strikes a nucleus, it breaks the nucleus apart into 2 lighter nucleus. It does not imply that the parent nucleus breaks up into " constituent protons and neutrons". It means that the parent nucleus breaks up into two smaller nucleus.

B) True.

inChernobyl explosion,there is a speculation that the second explosion was caused due to the production of hydrogen due to the reaction between graphite and stram

Similarly in Fukushima explosion, hydrogen was produced due to the gamma radiation.

C.) True.

As the mass defect increases, the binding energy increases.

D.)True

During negative beta decay neutron is converted into proton and an electron and antineutrino( massless) is released.

Whereas during positive beta decay proton is converted into neutron by emitting a pozitron( an electron with a positive charge) and a neutrino( an antiparticle of antineutriono ; also massless)

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