Atomic number of hydrogen is
1
2
4
6
Which of these is not used for the preparation of hydrogen?
Na
O
K
Pb
Oxidation is the process of
addition of oxygen
removal of oxygen
addition of O3
addition of carbon
Valency of hydrogen is
3
5
Reduction is the process of
removal of hydrogen
Complete the reaction2H2 + O2 → ?
2HO + heat
H2O + heat
2H2O + heat
HO2 + heat
Action of hydrogen on litmus is
acidic
neutral
basic
not predictable
Complete the reaction
2Na + H2 → ?
2NaH
Na2H
NaH2
NaH
Which of the following reactions is /are the preparation of Hydrogen?
Reaction of Potassium with cold water
Reaction of magnesium with boiling water
Reaction of Iron with steam
All of these
On Haber process, which of these gas is releasing?
Sodium choride
Ammonia
Methane
Zinc chloride
