What is the primary component of tonic water?

The primary component of tonic water is carbonated water. Tonic water is essentially flavored carbonated water that is infused with quinine, a compound derived from the bark of the cinchona tree. Quinine gives tonic water its distinctive bitter taste, which is one of the key factors that differentiate it from other soft drinks. The carbonated water serves as the base for the drink, creating the fizzy texture that many people enjoy in cocktails and on its own.

While some tonic waters may have additional flavors or sweetness added to them, the fundamental makeup starts with carbonated water. This base is essential in providing the refreshing experience that tonic water is known for, which is often mixed with spirits like gin to create classic cocktails. The other options do not accurately represent the main composition of tonic water, emphasizing the importance of carbonated water in its formulation.