(a) Define the terms 'alloy' and 'amalgam'. Name the alloy used for welding electric wires together. What are its constituents?
(a) Define the terms 'alloy' and 'amalgam'. Name the alloy used for welding electric wires together. What are its constituents?
(b) Name the constituents of the following alloys :
(i) Brass (ii) Stainless steel (iii) Bronze,
State one property in each of these alloys, which is different from its main constituents
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(a) An alloy is a homogeneous mixture of two or more metals or a metal and a non-metal, mixed in the molten state. Amalgam is an alloy of a metal with mercury.
Solder - Lead and tin. :
(b) (i) Brass - copper and zinc
(ii) Stainless steel - iron, nickel and chromium
(iii) Bronze - copper and tin.
Brass and bronze have lower electrical conductivity than their constituents. Stainless steel does not corrode easily as iron does.
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