Oxygen is prepared commercially from
Sodium and water
Electrolysis of water
KCIO3
HNO3
When H2S is passed through HNO3 solution, the product formed is
Milk of S
Colloidal S
Υ-S
β-S
Large deposits of sulphur in nature are found in the form of
Flowers sulphur
H2SO4
H2SO3
Free sulphur
Which compound has bond angle nearly 90°?
NH2
SO2
H2O
H2S
Which one has the highest bond energy?
O-O
S-S
Se-Se
Te-Te
Ozone reacts with
C2H4
C2H2
C6H6
All
In which reaction there is no change in the oxidation states?
SO2 + H2S → 2H2O + 3S
2Na + O → Na2O
Na2O2 + H2SO4 → Na2SO4 + H2O
4KCIO3 →3KCIO4 + KCI
Oxalic acid when heated with conc. H2SO4 gives
CO, CO2 and H2O
CO2 and H2S
Oxalic sulphate
The geometry of H2S and its dipole moment are
Angular and non-zero
Angular and zero
Linear and zero
Linear and non-zero
Platinised asbestos used as a catalyst in the manufacture of H2SO4 is an example of
Heterogenous catalysis
Autocatalysis
Homogeneous catalysis
Induced catalysis
