Question

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Q4. The electrolysis of sodium chloride solution produces useful substances.

(a) (i) Choose a word from the box to complete the sentence.

covalent ionic non-metallic


Electrolysis takes place when electricity passes through ..................................

compounds when they are molten or in solution. (1)

Answer 1

Electrolysis is the passage of a direct electric current through an ionic substance that is either molten or dissolved in a suitable solvent. This results in chemical reactions at the electrodes and the separation of materials.

Step-by-step explanation:

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