Some of the acids are given below-
Acetic acid - found in vinegar
Lactic acid - found in sour milk or curd
Tartaric acid - found in tamarind and unripe grapes
Ascorbic acid (vitamin C) - present in oranges and guavas
Oxalic acid - found in tomatoes
Citric acid - present in lemon, oranges, beans
Succinic acid - present in carrot, broccoli
Malic acid - found in peas,strawberries, orange, grapefruit, apples.
Phosphoric acid - found in tomatoes and potatoes
Sulphuric acid - present in tomatoes
Some of the bases are :
Magnesium hydroxide : Present in antacid
Ammonia : present in fertiliser
Sodium hydroxide : Soaps
Sodium carbonate : Detergents