Important Organic Acids

NameChiefly found inFormula
Lactic acidSour milkC2H4OHCOOH
Acetic acidVinegarCH3COOH
Formic acidAnt venomHCO2H
Citric acidCitrus fruits like lemon, lime, orangeC6H8O7
Oxalic acidRhubarb, spinachH2C2O4
Butyric acidMilk, butter CH3CH2CH2-COOH
Lauric acidCoconut oilCH3(CH2)10COOH
Malic acidSour apples, sour grapesHO2CCH2CHOHCO2H
Tartaric acidGrapes, tamarinds, pineapplesC4H6O6
Erucic acidRapeseed oil, Mustard oilCH3(CH2)7CH=CH(CH2)11COOH

Properties of Acids

1. Acids have pH less than 7.
2. Acids turn blue litmus to red.
3. Acids have sour taste.
Reactions
With basesAcids react with bases to produce a salt and water.
With carbonatesAcids react with carbonates to produce salt, water and carbon dioxide.
With metalsAcids react with metals to produce a salt and hydrogen.