1.

(a) Name three types of substances in which an electric current can produce a chemical effect. (b) State some of the characteristics of chemical changes brought about by the chemical effect of electric current. (c) Why does an electric bulb glow when a current passes through it ?

Answer»

(a) Name three types of substances in which an electric current can produce a chemical effect.
(b) State some of the characteristics of chemical changes brought about by the chemical effect of electric current.
(c) Why does an electric bulb glow when a current passes through it ?



Discussion

No Comment Found