Question

due to which property of Gold it is used to make Jewellery items​? (a)ductility (b)Malleability (c)both a, b (d) sonority​

Answer 1

(c)both a, b properties help in making jwellery from gold.

1. The property of ductility is the ability to be drawn into wires without breaking or causing fracture in element.
2. The property of malleability is the ability to be hammered into sheets, again without breaking.
3. The property of sonority is to produce sound on being struck.
4. Since jewelleries are not required to make sound, malleability and ductility property of gold makes it suitable for jewellery making.

Answer 2

It should be lustrous, which means it should be shiny, and it should be easy to mould into any shape. It should also be corrosion resistant since it should not tarnish.

Explanation:

• Gold and silver are malleable and ductile, they may be shaped into almost any shape.
• A malleable material is one that can be easily shaped into a thin sheet by hammering or rolling. In other words, the material has the ability to deform when subjected to high compressive stress.
• The ability of a substance to deform under tensile stress is known as ductility. As a result, a ductile material is one that can be easily stretched into a wire when pulled.
• They are lustrous metals that are non-corrosive, meaning they do not react with air, water, or acids to generate oxides. Because they are unreactive metals, they do not tarnish, allowing them to retain their lustre and shine for years.
• Correct option is 'C'