Q5 of 21 Page 3

List two properties of gold and silver which make them most suitable for making ornaments according to our need. (CBSE 2008)

Properties of gold and silver:

i. The outermost shell of gold and silver is completely filled. Therefore, they are chemically unreactive. Neither they react with water nor air, hence, they both are called as noble metals.


ii. They both have a metallic lustre too. The lustre remains for a very long time. It does not get fade away.

More from this chapter

All 21 →
3

Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them? (CBSE 2014)

 4

An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal. (CBSE 2015)

 6

Why sodium is kept immersed in kerosene oil? (CBSE 2009, 2008)

 7

How are the properties of an alloy different from those of the constitutent elements?
(CBSE 2016)