An electrovalent compound is made up of
A.neutral atoms
B.electrically charged atoms or groups of atoms
C.electrically charged molecules
D.neutral molecules
Category: Nuclear Engineering Mcqs
Tritium is
A.radioactive deuterium
B.obtained by bombardment of 4Be9 particle
C.prepared by the electrolysis of water
D.prepared by the electrolysis of heavy water
The percentage of U-238 in all naturally occurring uranium is about
A.99.29%
B.0.71%
C.10%
D.99.99%
What percentage of the original radioactive nuclei are left after 5 half-lives?
A.20
B.12.5
C.3.125
D.5.125
The density of nucleus is about
A.10-10 times the density of atom
B.1012 times the density of atom
C.10-8 times the density of atom
D.1010 times the density of atom
India conducted an underground nuclear test at
A.Pushkar
B.Kalapakkam
C.Norora
D.Pokharan
The volume of nucleus is about
A.10-12 times the volume of atom
B.1012 times the volume of atom
C.10-10 times the volume of atom
D.10-8 times the volume of atom
Heavy water is qualified as heavy because it is
A.a heavy liquid
B.an oxide of a heavier isotope of oxygen
C.denser than water
D.an oxide of deuterium
The electron is a particle with a mass of about
A.1/18 of the lightest nucleus
B.1/180 of the lightest nucleus
C.1/1800 of the lightest nucleus
D.1/18000 of the lightest nucleus
