A liquid contains normally no ions or metals; so that you already know.
Many liquids belong to the carbon chemistry (organic chemistry: ethers, esthers, amino acids, alkanoles, etc.).
Of course there are also a number of inorganic liquids like water, bromium, sulfuric acid. To be sure if the substance is organic, you know how to find out (see IIa).
- Organic liquids do also produce carbon dioxyde and water (when burnt or investigated with lime water and waterfree Copper(II)sulfate
- Alkanals can be found with Fehlings Reactant
- Primary and secundary alkanols are found with dichromate or permanganate
- Unsaturated compounds with bromium water