Question

explain the terms *anodising *aqua regia in short​

Answer 1

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${\pink{\underbrace {\blue {Anodising}}}}$

• Anodising is an electrolytic process for producing thick oxide coatings, usually on aluminium and its alloys.
• The oxide layer is typically 5 to 30µm in thickness and is used to give improved surface resistance to wear and corrosion, or as a decorative layer.

${\pink{\underbrace {\blue {Aqua \: regia}}}}$

• It is a mixture of concentrated nitric and hydrochloric acids.
• It is a highly corrosive liquid able to attack gold and other resistant substances.

Answer 2

Answer:

Anodising is the process of making a pure metal at anode.

Aqua Regia is a mixture ( compound) of HCL to HNO3 in the ratio of 3:1