Question

'Type metal' is a well known alloy made out of the three metals:

• A. $Pb,Sb,Sn$
• B. $Ni,Cu,Ag$
• C. $Ag,Ni,Zn$
• D. $Al,Cu,Zn$

Answer 1

The correct option is A $Pb,Sb,Sn$

Type metal is an alloy made up of lead, Antimony and tin. Type metal is used in printing trade. Lead is the main composition but $Sn$ and $Sb$ are used to increase the hardness of type metal.

So, the correct option is ${}^{\prime }{A}^{\prime }$.

$Pb,Sb$ and $Sn$.