8.27 What are alloys? Name an important alloy which contains some of the lanthanoid metals. Mention its uses.

Step 1:

An alloy is a solid solution of two or more elements in a metallic matrix. It is a 
homogeneous solid solution in which the atoms of one metal are distributed randomly among the atoms of the other.

Step 2:

An important alloy of lanthanoids is Mischmetal. It contains lanthanoids (94−95%), iron

(5%), and traces of S, C, Si, Ca, and Al.


(1) Mischmetal is used in cigarettes and gas lighters.

(2) It is used in flame-throwing tanks.

(3) It is used in tracer bullets and shells.