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Pure gold is very soft and therefore not...

Pure gold is very soft and therefore not suitable for making jewellery. To make it hard, gold is alloyed with other metals. The purity of gold is measured in carats according to the table below. Carat number is the number of parts of gold in 24 parts.

(b) (i) What type of mixture is an alloy?
(ii) How does the electrical conductivity of an alloy compare with that of the pure metal?

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