Chemistry 2004 JAMB Past Questions - Question 37: alloys are best prepared by

Correct Answer

C

Explanation

Alloys are best prepared by cooling a molten mixture of the metals. This process is known as alloying or alloy formation through melting. The method involves heating two or more metallic elements until they reach a molten state and then allowing them to cool and solidify. During the cooling process, the atoms of different metals mix together to form a homogeneous mixture with properties distinct from those of the individual elements.

While electroplating and arc-welding involve the application of one metal onto the surface of another, and reducing a mixture of metallic oxides is a process that typically yields individual metals rather than alloys, none of these methods specifically lead to the formation of alloys as their primary outcome. The cooling of a molten mixture of metals is the most common and effective method for preparing alloys with desired properties.