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1991 WAEC Chemistry Theory  Give one oxide in each case which; (a) can act as a reducing agent (b)...

Chemistry
WAEC 1991

 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.

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Explanation

(a) SO\(_{2(g)}\)

(b) CO\(_{2(g)}\)

(c) SO\(_{3}\)

(d) ZnO\(_{(s)}\)

(e) PbO\(_{(s)}\)


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