Application of Electrolysis

What is the Industrial Application of Electrolysis?

• The purification of water and plastic

• The extraction and purification of ores and compounds

• The creation of ores and compounds

• None of the above

All of the following are applications of electrolysis EXCEPT:

• Refining of metals

• Electro-cleaning

• Electroplating

• Electro-cutting

What application of electrolysis is used to form pure zinc?

• Extraction of Metals

• Electro-Typing

• Electroplating

• Production of Chemicals

Which acid is zinc ore treated with?

• Hydrochloric acid

• Sulphuric Acid

• Water

• Sulphur Hydroxide

What are the ores of aluminium? Select all that apply.

• Bauxite

• Iron

• Graphite

• Cryolite

Complete the reaction of Aluminium Oxide at the CATHODE

Al³⁺_{(l) _______} => Al_(l)

• -3e

• 3e^-

• 3-

• 3e⁺

Which Application of Electrolysis is used to plate jewellery with various types of metals?

• Electro-Typing

• Electroplating

• Refining of Metals

• Electro-Forming

What are the reasons for electroplating?

Select all that apply

• To give reflective properties

• To hide rusty metal

• To protect against corrosion

• To give shiny appearance

Answer the question. (Hint: Metal oxides and hydroxides are bases.)

• A

• B

• C

• D

• None of the above