ACIDS, BASES AND SALTS
1.Sour Taste: Substances like curd, lemon juice, orange juice, and vinegar taste sour because they contain acids.
2.Acidic Nature: These substances are termed acidic due to their sour taste. The term ‘acid’ is derived from the Latin word ‘acere’, meaning sour.
3.Natural Acids: The acids found in these substances are naturally occurring.
1.Bitter Taste and Soapy Feel: Substances like baking soda do not taste sour but rather bitter and feel soapy when rubbed between fingers.
2.Basic Nature: Such substances are called bases and are characterized by their bitter taste and soapy texture.