Question

Which among the following is an example of a mixture?

• A. Iron bar
• B. Limestone
• C. Distilled water
• D. Brass ring

Answer 1

The correct option is D Brass ring

A mixture is a combination of two or more different substances. The constituents of a mixture can be separated by simple physical means.

i) An iron bar is made up of the same type of particles, i.e., iron atoms.
ii) Limestone is made up of the same type of particles and has uniform properties throughout. Hence, limestone is not a mixture.
iii) Distilled water does not contain impurities and is made up of the same type of particles, i.e., water molecules. Hence, it is not a mixture.
iv) A brass ring is an alloy of copper and zinc. Hence, it is an example of a mixture.