Which colour is obtained by copper alloys, when zinc is added to it?(a) Red(b) Blue(c) Silver(d) YellowThis question was addressed to me in semester exam.This intriguing question comes from Copper Alloys topic in division Foundry Introduction & Materials of Casting-Forming-Welding II

Which colour is obtained by copper alloys, when zinc is added to it?(a

1.	Which colour is obtained by copper alloys, when zinc is added to it?(a) Red(b) Blue(c) Silver(d) YellowThis question was addressed to me in semester exam.This intriguing question comes from Copper Alloys topic in division Foundry Introduction & Materials of Casting-Forming-Welding II
Answer» Right option is (d) Yellow The explanation: It is one of the most unusual properties of copper ALLOYS, that on addition of DIFFERENT MATERIALS in them, there is a change observed in its appearance, that is, the colour of the mixture starts changing. On addition of ZINC METAL in copper, the colour of the mixture changes to yellow.

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