| A | B |
|---|
| Iodine solution | reagent for starch; turns blue-black if starch is present |
| Benedict's solution | reagent for sugar; solution changes to reddish-orange if starch is present |
| Biuret solution | reagent for protein; solution changes to purple/violet if protein is present |
| Ethanol | reagent for fat; turns milky white if fat is present |
| emulsion* | a suspension of tiny droplets of one liquid in a second liquid |
| reagent* | a substance used in a chemical reaction to detect the presence of another substance |
