Questions in nuclei

Select	Question
	energy. The emitted particle is
	In a nuclear reaction, which of the following is conserved
	A free neutron decays into a proton, an electron and
	Which of the following is used as a moderator in nuclear reactors
	Energy in the sun is generated mainly by
	When a slow neutron goes sufficiently close to a ${U^{235}}$nucleus, then the process that takes place is
	If a proton and anti-proton come close to each other and annihilate, how much energy will be released
	Which of these is a fusion reaction
	In a nuclear fission reaction
	Hydrogen bomb is based on which of the following phenomenon