Which one of the following does not contain silver?
Reviewed by Dalvoy
UPSC Civil Services preparation
- AHorn Silver
- BGerman silverCorrect
- CRuby silver
- DLunar caustic
Explanation
German silver is the correct answer because it does not contain any silver despite its name. It is an alloy typically composed of copper, zinc, and nickel. It is called German silver only because of its silvery-white appearance.
The other options actually contain silver as follows:
1. Horn silver is silver chloride.
2. Ruby silver is a silver sulfo-antimonite mineral.
3. Lunar caustic is silver nitrate.
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