Ca(OH)2 is a ………..
a) acid
b) base
c) both a & b
d) none of these
Water reacts with non-metallic oxide to form
a) acids
b) bases
c) salt
d) all of these
Water react with ……forming carbonic acid.
a) NO2
b) SO2
c) HCl
d) CO2
The chemical formula of carbonic acid is……
a) HNO3
b) CaCO3
c) H2CO3
d) H2SO4
Water react with NO2 to produce ……….
a) HNO2
b) HNO3
c) both a & b
d) H2SO4
Water reacts with SO3 forming………..
a) H2SO4
b) HNO2
c) HNO3
d) CaCO3
