Question

Is milk a pure substance?

Answer 1

Answer:

Pure substances:

• In chemistry, pure substances have a fixed chemical composition or constant structure throughout.
• For example, Water, Oxygen, and Gold.

Milk:

• Milk is a mixture of water, milk, protein, and fat.
• it can be split into two or more different substances.
• Hence, milk is not a pure substance.

Conclusion:

Therefore, Milk is a mixture of water, milk, protein, and fat.

So, it is not a$\left({\mathrm{H}}_2\mathrm{O}\right)$ pure substance.