Q2 of 55 Page 169

Mention examples of two alloys.

Alloys are the homogeneous mixture of 2 or more metals or metal and non-metals. Two of its examples are:

i) Brass (Copper, Zinc)


ii) Steel (Iron, Carbon)


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2

Which two metals are generally not corroded?

 2

Stainless steel is a homogeneous mixture of which three metals?

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Write chemical formula of rust.

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Explain the following terms:

i. Mineral:


ii. Ore:


iii. Metallurgy:


iv. Centrifugation:


v. Roasting:


vi. Calcination:


vii. Anodic mud:


viii Metallic corrosion:


ix. Alloy:


x. Galvanizing: