Question

Which of the following is the most unreactive metal?

• A. Iron
• B. Lead
• C. Aluminium
• D. Gold

Answer 1

The correct option is D

Gold

The explanation for the correct option -

(D) Gold

Gold -

• It is one of the most non-reactive metals.
• It does not react with water and air.
• It retains its shine and lustre for a very long time.

The explanation for the incorrect options -

(A) Iron - It forms rust when exposed to moisture and air.

(B) Lead - It also reacts with acids very easily.

(C) Aluminium - It also reacts with oxygen in the air.

Hence, option (D) is correct. Gold is the most unreactive metal of the above-given options.