# 1pilihanWhat is a carboxylic acid?A type of fruitA group of animalsA type of chemical compoundA kind of plant
# 2pilihanWhich of the following is a common carboxylic acid?Acetic acidHydrochloric acidSulfuric acidNitric acid
# 3pilihanWhat functional group is present in all carboxylic acids?Hydroxyl groupCarboxyl groupAmine groupPhosphate group