Correct option is B
Aluminum is a lightweight, silvery-white metal. It can be distinguished from other metals by its appearance and by performing a hardness test.
Properties:
· Aluminum is
soft and malleable, making it easy to shape into various forms like sheets, foils, and wires. It is
non-toxic, lightweight, and versatile.
· Aluminum is the
most abundant metal in the Earth's crust, comprising approximately
8% by weight. It is primarily extracted from
bauxite ore.
· It is
corrosion resistant due to the formation of a natural
oxide layer (Al₂O₃) on its surface, which protects it from further oxidation.
· Aluminum
conducts heat and electricity well, making it a preferred material for electrical and thermal applications like wiring, heat exchangers, and cookware.
· Aluminum is
easily weldable, making it suitable for structural and fabrication purposes.
