APPLICATION OF ELECTROLYSIS IN INDUSTRIES

APPLICATION OF ELECTROLYSIS IN INDUSTRIES

BY TICER PADIJAH

Multiple Choice

1. Examples of applications of electrolysis in industries include electroplating of metals, purification of metals and extraction of metals

• True

• False

Multiple Choice

2.____________process is used to prevent rusting of iron objects.

• Extraction

• Electroplating

Multiple Choice

3._________________method is used to treat wastewater.

• Electrolysis

• Electrocoagulation

Multiple Choice

4. The two processes which are involve in electrocoagulation are electrolysis and coagulation.

• True

• False

Multiple Choice

5. Coagulation occurs when _____________ions and pollutants in the wastewater combine to produce coagulants.

• aluminium

• hydrogen

Multiple Choice

6. Coagulant which is sinks and gather at the base is known as................

• crystal

• floc

Multiple Choice

7.Electrolysis process is part of electrocoagulation process. During the electrolysis process, at the anode, a metal electrode such as aluminium ionises in the electrolyte to produce...................ions.

• alluminium

• hydrogen

Multiple Choice

9. During coagulation, floc trapped in hydrogen gas bubbles released from the cathode, are brought

up to the water surface.

• True

• False