Answer:
a) barium chloride
b) iron (III) oxide
c) cesium nitrite
d) magnesium bicarbonate
Explanation:
Inorganic compounds are named based on the following conventions:
Metal cation + Non-metal anion
The name of the metal is retained as such, whereas the anion name is followed by the suffix 'ide'
For polyatomic anions the corresponding name is added to the name of the metal
Only for transition metals, the specific oxidation state exhibited by the metal cation is mentioned in roman numerals.
a) BaCl2
Ba, Barium cation + chloride anion
Name = Barium chloride
b) Fe2O3
Fe is a transition metal. In this compound the oxidation state of Fe is +3 and not +2. Hence the name is iron (III) oxide
c) CsNO2
Cs, cesium cation + NO2-, nitrite anion
Name = cesium nitrite
d) Mg(HCO3)2
Mg, magnesium cation + HCO3-, bicarbonate anion
Name = magnesium bicarbonate
