Tannic
Source: This question is taken from the Everyday Science
Vinegar
Red
Amphoteric substances
Arm
Sulfur Dioxide and Nitrogen Oxide
Gases
Argon
Sour taste
Hydrogen
Dilution and Ionisation
Salt and water
Yogurt
Tamarind and Grapes
Alma and Citrus Fruits
None of these
DNA
Float
Liquids