Platinised asbestos used as a catalyst in the manufacture of H2SO4 is an example of
Heterogenous catalysis
Autocatalysis
Homogeneous catalysis
Induced catalysis
Large deposits of sulphur in nature are found in the form of
Flowers sulphur
H2SO4
H2SO3
Free sulphur
Which one has the highest bond energy?
O-O
S-S
Se-Se
Te-Te
Oxygen is prepared commercially from
Sodium and water
Electrolysis of water
KCIO3
HNO3
H2SO4 has very corrosive action on skin because
It reacts with proteins
It acts as dehydrating agent and absorption of water is highly exothermic
It acts as oxidizing agent
It has bleaching action
Which compound has bond angle nearly 90°?
NH2
SO2
H2O
H2S
Which of the following isotopes is present in largest amount?
O16
O17
O18
All in equal amounts
Number of hydroxyl groups present in pyrosulphuric acid is
3
4
6
2
The geometry of H2S and its dipole moment are
Angular and non-zero
Angular and zero
Linear and zero
Linear and non-zero
When a lead storage battery is discharged
SO2 is evolved
Lead sulphate is consumed
Lead is formed
H2SO4 is consumed