Sodium reacts with …….vigorously and forms hydrogen gas.
a) hydrogen
b) oxygen
c) water
d) halogen
Sodium reacts with……….and forms sodium halide.
a) hydrogen
b) oxygen
c) water
d) halogen
Sodium reacts with …….and forms sodium sulphide.
a) hydrogen
b) oxygen
c) water
d) sulphur
Sodium vapour lamps give a bright…….light for street lighting.
a) green
b) orange- yellow
c) red
d) green-purple
Which of the following is use during the desulphurization of petroleum?
a) lithium
b) sulphur
c) sodium
d) calcium
Magnesium:
