Question

Which of the following is incorrect statement regarding the noble metals?
(1) They are in elemental form.
(2) They are easily affected by air, water and heat.
(3) They are not corrosive at room temperature,
(4) They are not oxidised at room temperature.​

Answer 1

Answer:

3 is the correct answer or 4

Answer 2

(2) They are easily affected by air, water and heat is the incorrect statement about noble metals.

1. Noble metals are defined as the metallic elements that resist various types of reactions, like oxidation and corrosion at normal temperature and higher temperatures.
2. Example of elements that are categorised under noble metals are iridium, platinum, gold, silver etc.
3. Other properties of noble metals include their best conductivity. Moreover, these metals are highly catalytic in nature with good electron affinity.