Question

a) what is an alloy? How does it differ from amalgam?
b) Name the method most widely used for refining of impure metals
c) Draw a labelled diagram to show the refining of copper

Answer 1

Answer:

Alloy- Homogeneous mixture of two or more metals or non metal ......If metals are alloyed with mercury the alloys are called amalgam

Explanation:

b) electrolytic refining

c) kindly refer fig 3.12 pg 52 of class 10 ncert science

Answer 2

Answer:

a) are the mixtures of different metals and nonmetals amalgam is an alloy of Mercury with another metal which may be liquid or soft based at room temperature.

b) the most widely used method for refining of impure metal is obtained by reduction processes is electrolytic refining method electrolytic refining is a process of purification by electrolysis several metals like operators in thin and Nickel chromium your and Sheela refined by this process.