Question

which is pure substance milk seawater soil 24 carot gold​

Answer 1

Answer:

milk is a colloidal solution

sea water is a homogenous mixture

gold is an element

hence gold is a pure substace

Answer 2

Answer:

24 carat gold is the purest out of these options as-

• milk is made up of a lot of proteins and calcium
• seawater is mixed with a lot of substances such as shipwrecks, aquatic life etcetera
• But 24 carat gold is the purest form of gold