Platinised asbestos used as a catalyst in the manufacture of H2SO4 is an example of
Heterogenous catalysis
Autocatalysis
Homogeneous catalysis
Induced catalysis
The reaction in the Kipp's apparatus stops when the outlet is closed from the top because
The acid become weak
Gas pressure breaks the contact between FeS and the acid
Gas starts coming out
Protective film is formed on FeS
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
Oxygen is more electronegative than sulphur yet H2S is acidic while H2O is neutral. This is because.
Water is highly associated compound
H-S bond is weaker than H2O is neutral.
H2S is a gas while H2O is a liquid
The molecular weight of H2S is more than that of H2O
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
'In Kipp's apparatus. H2S is prepared
Continuously
By FeS + Conc. H2SO4
By FeS + dil. H2SO4
By Fe + dil. H2SO4
Which hydride is most acidic?
H2O
H2S
H2Te
H2Se
Which metal sticks to a glass plate after treatment with ozone
Silver
Mercury
Copper
Lead
