German silver is an alloy of
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German silver, the name for various alloys of copper, zinc, and nickel, often also contains lead and tin. German silver was originally named after its silver-white color, however, the term 'silver' is now prohibited for alloys not containing that metal.
- copper, zinc and silver
- copper, zinc and nickel
- copper, zinc and tin
- manganese, chromium and nickel
The Correct Option is B
Solution and Explanation
German silver is an alloy of copper, zinc and nickel.
An alloy is a metallic substance composed of two or more metals. Alloys can also be formed from combinations of metals and other elements. German silver is a term for various copper, zinc, and nickel alloys, often even containing lead and tin. German silver is an alloy of copper, zinc and nickel in the ratio of \(2: 1: 1.\) It is used in making utensils and resistance coils.
Hence, the correct answer is option B.
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Concepts Used:
D and F Block Elements
The d-block elements are placed in groups 3-12 and F-block elements with 4f and 5f orbital filled progressively. The general electronic configuration of d block elements and f- block elements are (n-1) d 1-10 ns 1-2 and (n-2) f 1-14 (n-1) d1 ns2 respectively. They are commonly known as transition elements because they exhibit multiple oxidation states because of the d-d transition which is possible by the availability of vacant d orbitals in these elements.
They have variable Oxidation States as well as are good catalysts because they provide a large surface area for the absorption of reaction. They show variable oxidation states to form intermediate with reactants easily. They are mostly lanthanoids and show lanthanoid contraction. Since differentiating electrons enter in an anti-penultimate f subshell. Therefore, these elements are also called inner transition elements.
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