What are alloys? Name an important alloy which contains some of the lanthanoid metals. Mention its uses.
An alloy is a solid solution of two or more elements in a metallic matrix. It can either be a partial solid solution or a complete solid solution. Alloys are usually found to possess different physical properties than those of the component elements.
An important alloy of lanthanoids is Mischmetal. It contains lanthanoids $(94-95 \%),$ iron $(5 \%),$ and traces of $S, C, S i, C a,$ and $A I$ Uses
$(1)$ 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.
Which alloy contains non metal
Amongst $Ti{F_6}^{2 - }\,,\,Co{F_6}^{3 - }\,,\,C{u_2}C{l_2}$ and $NiCl_4^{2-}$ the colourless species are
Percentage of silver in German silver is
Which of the following have highest melting point
Which one of the following metals will not reduce ${H_2}O$