Question

Which amongst the following substances is lustrous?

(a) Plastic
(b) Gold
(c) Wood
(d) Sand (1 Mark)

Answer 1

The correct answer is (b) Gold. (1 Mark)

• The ability of a material to shine is called lustre. Based on lustre, materials can be lustrous or non-lustrous.
• Metals generally are lustrous. Among the given options, only gold is a metal. Whereas sand, wood, and plastic are not metals. Hence, gold shows the property of lustre.