Question

Define an alloy. How are alloys prepared? How do the properties of iron change when:
(i) small quantity of carbon,
(ii) nickel and chromium are mixed with it.

Answer 1

alloy is the homogenous mixture of two or more metals or metal a non metal.
i)increases strength
ii)increase its corrosion resistance and shine

Answer 2

homogeneous mixture of two or more metals...