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
____________ can be prepared by bombarding lithium with slow neutrons.
protium
deuterium
tritium
none of these
_________is heavy water
H2180
H2160
H203
D20
Which one of the following is non reducing?
H2S
H2Te
H2Se
H20
When heated in bunsen flame, lithium gives _______ color
blue
red
lilac
crimson red
Which of the following is incorrect?
H2O2 is a weak acid
H2O2 is a weak alkali
H2O2 acts as an oxidising agent
H2O2 is a reducing agent
