When CO2 , SO2 and NO2 come in contact with water vapours, acid such as…………are formed.
a) carbonic acid
b) sulphur acid
c) nitric acid
d) all of these
The general formula of carbonic acid is……
a) H2SO4
b) HNO3
c) H2CO3
d) H2PO4
H2SO4 , HNO3 and H2CO3 make the rain water…………
a) acidic
b) basic
c) amphoteric
d) none of these
Acidity is determined on the basis of the ………… level of the water droplets.
a) pH
b) pOH
c) both a & b
d) none of these
The acidic oxides of carbon nitrogen are sulphur are highly soluble in…………
a) H2O
b) CO2
c) SO2
d) NO2
