Question

A jeweller has two different samples of White gold(a jewellery which contains two elements, gold and palladium) that are both identical in appearance and have a uniform composition throughout. What can be said about the samples?

• A. They are homogeneous mixtures and also metallic alloys.
• B. The materials are heterogeneous mixtures and can be classified by their components.
• C. The samples have variable compositions and are classified as metallic solutions.
• D. The samples are heterogeneous mixtures that can be separated using magnetic properties.

Answer 1

The correct option is A

They are homogeneous mixtures and also metallic alloys.

A mixture that has the same proportions of its components throughout any given sample is a homogeneous mixture.

Here, as they have a uniform composition throughout they are considered as the homogeneous mixture. And both samples are a mixture of two metals (gold and palladium), thus they are alloys.