Oxalic acid when heated with conc. H2SO4 gives
CO, CO2 and H2O
CO2 and H2S
Oxalic sulphate
Which of the following isotopes is present in largest amount?
O16
O17
O18
All in equal amounts
Ozone reacts with
C2H4
C2H2
C6H6
All
Which compound has bond angle nearly 90°?
NH2
SO2
H2O
H2S
Platinised asbestos used as a catalyst in the manufacture of H2SO4 is an example of
Heterogenous catalysis
Autocatalysis
Homogeneous catalysis
Induced catalysis
When H2S is passed through HNO3 solution, the product formed is
Milk of S
Colloidal S
Υ-S
β-S
Bond angle in O3 molecule is
108o29'
108o28'
116o90'
120o
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 hydride is most acidic?
H2Te
H2Se
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
