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nuclear fission
nuclear fusion
natural radioactivity
artificial radioactivity
Hydrogen fuel cell vehicles produce one of the following asexhaust
Identify the natural indicator.
If lime water is kept in the air, it turns milky due to presence of :
If the sewage is fully oxidized, the nitrogen is in the form of
If there is one million Mg2+ ions in MgCl2, how many chloride ions are there
If we burn graphite
In 35CI34 and 37CI17 which of the following is false ?
In a nuclear reactor the material use for absorbing neutrons is
In addition to hydrogen, the other abundant element present on Suns surface is
In an atom the order of filling up of the orbitals is governed by