(a(i–vi))[6]
Use only oxides from the list to answer the following. An oxide may be chosen once, more than once, or not at all. State the formula of an oxide: (i) that is the main cause of acid rain, (ii) that forms a solution of pH 14 when it is added to water, (iii) that is coloured, (iv) that is the chief impurity in iron ore, (v) that is amphoteric, (vi) that is neutral.
(b(i))[1]
What does the term amphoteric oxide mean?
(b(ii))[1]
What does the term neutral oxide mean?