Question

Which metal is used for making water and steam pipes?

(a) Zinc

(b) Aluminium

(c) Copper

(d) Iron

This question was addressed to me in an internship interview.

I would like to ask this question from Uses of Aluminium, Copper, Zinc and Iron topic in chapter General Principles and Processes of Isolation of Elements of Chemistry – Class 12

Answer 1

Correct choice is (c) Copper

Explanation: Copper is used because of its high thermal conductivity. This is higher than all other metals except silver, a precious metal. Copper has a 60% better thermal conductivity rating than aluminium and a 3,000% better rating than stainless steel.