Question

Which element has the highest thermal conductivity of all metals?

• A. Copper
• B. Aluminum
• C. Silver
• D. Gold

Hint:

{Order of thermal conductivity (high to low):} {Silver>Copper>Gold>Aluminum}.

Answer 1

The Correct Option is C

Concept: Thermal conductivity is the ability of a material to conduct heat. Among all metals, silver (Ag) has the highest thermal conductivity. Silver allows heat to flow through it very efficiently due to the movement of free electrons within its structure.
Step 1: Identify the metal with the highest thermal conductivity.
Silver is the best conductor of heat among metals.
Step 2: Compare with other metals.

• Copper also has very high thermal conductivity but slightly lower than silver.
• Aluminum conducts heat well but less efficiently than copper.
• Gold has good conductivity but is less than silver and copper.

Thus, the element with the highest thermal conductivity is Silver.