Question

Which of these are pure substances and which are mixtures?

Apple juice

Liquid detergent

Tree sap

Neon

Table sugar $C_{12}{H}_{22}{O}_{11}$

Platinum $Pt$

Vodka

Benzene $C_6{H}_6$

Answer 1

Apple juice is a mixture. Water with various naturally occurring substances dissolved or dispersed in it.

Liquid detergent is a mixture. It is usually a detergent such as sodium dodecyl sulphate, dissolved in water with things like scents and colourants added.

Tree sap is a mixture. Water, with various naturally occurring compounds dissolved into it.

Neon is a pure substance, its an element (group 8 or "Nobel Gas").

Table sugar is generally a pure substance - its the compound "sucrose".

Platinum is a pure substance. It is a transition metal.

Vodka is a mixture, predominantly of ethanol and water.

Benzene is a pure substance (a compound).