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
On moving down the group, the ionisation energy of alkali metals.
increases
decreases
will not change
none of these
____________ can be prepared by bombarding lithium with slow neutrons.
protium
deuterium
tritium
The oxidation state of alkali metals is
+2
0
+1
+4
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
Para and ortho hydrogen differ in
atomic number
atomic mass
spins of protons
number of neutrons
Ortho and para hydrogen have
identical chemical properties but different physical properties
identical physical properties and chemical properties
identical physical properties but different chemical properties
different physical and chemical properties
