When CO2 is bubbled into an aqueous solution of Na2CO3, the following is formed
H2O
OH-
NaHCO3
NaOH
Sodium is produced by the electrolysis of molten sodium chloride fed continuously into
Castner kneller cell
Galvanic cell
Daniel cell
Downs cell
LiAlH4 is used as
An oxidising agent
Reducing agent
Mordant
A water softner
The ashes of plant contain alkali metals 90% of which is
Li
K
Na
Rb
Slaked lime is
CaCO3
CaO
Ca(OH)2
Ca(C2O4)
Which of the following will liberals hydrogen by its reaction with HCl?
Cu
P
Hg
Mg
Lithium is the only alkali metal which do not place in kerosene but is wrapped in paraffin wax, because
It floats to the surface of kerosene because of low density
It reacts with kerosene
It does not react with air and H2O
These are metals
The atomic numbers of four elements are given below. Which is an alkaline earth metal?
10
20
30
40
Milk of lime is
CaHCO3
CaSO4 2H2O
