2 SO2 + O2 → :
2 SO4
2 SO3
SO4
2 SO
Among the following which is a monovalent poly atomic ion ?
HSO4-
ClO-
a and b
SO32-
Pick out the correct chemical formula of sodium nitrate ?
Na2CO3
NaNO3
2 NaCO3
Na2(CO3)2
Identify the polyatomic ion from the following ?
Cl-
O2-
Na+
NH4+
Among the following identify the information which are not conveyed by chemical equations ?
Isotopes
Number of moles
Concentration
a and c
Non-metals usually forms :
Cations
Radicals
Polyvalent cations
Anions
Name the cation present in NaCl ?
NaCl
2 Na
The acid radical present in sodium sulphate compound is :
Sodium
Sulphate
Water
Sodium hydroxide
Formula of Alumminium oxide is Al2O3. What is the valency of Alumminium ?
2
1
3
4
In Au3+, 3 electrons are :
Gained
Lost
Stable
Exchanged
