____________ can be prepared by bombarding lithium with slow neutrons.
protium
deuterium
tritium
none of these
Protium consists of one proton and ______
three neutrons
no neutrons
two neutrons
one neutron
At room temperature ordinary hydrogen consists of about.
25% para and 75% ortho
75% para and 25% ortho
99% para and 1% ortho
1% para and 99% ortho
On moving down the group, the ionisation energy of alkali metals.
increases
decreases
will not change
Deuterium nucleus consists of.
2 neutrons
2 protons only
One neutron only
One proton and one neutron
________ can be produced by reacting CO with stream in the presence of fix CO2 and H2.
H2O2
D2O
D3O
Hydrogen
_________is heavy water
H2180
H2160
H203
D20
