Which of these are pure substances and which are mixtures?
Apple juice is a mixture - water with various naturally occurring substances dissolved or dispersed in it.
Liquid detergent is a mixture - usually a detergent such as sodium dodecyl sulphate, dissolved in water with things like scents and colourants added.
Tree sap - this 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 - its a transition metal.
Vodka - this is a mixture, predominantly of ethanol and water.
Benzene - this is a pure substance (a compound).