Give one oxide in each case which;
(a) can act as a reducing agent
(b) can be used as a refrigerant
(c) is the anhydride of a strong acid;
(d) is yellow when hot and white then hot and white when cold;
(f) is usad as a pigment in paints.
Explanation
(a) SO(_{2(g)})
(b) CO(_{2(g)})
(c) SO(_{3})
(d) ZnO(_{(s)})
(e) PbO(_{(s)})