An acid is a substance which dissociates in water to give positively charged hydrogen (H+). Acids are generally sour in taste and react with the base to produce salt. This note contains further information about acid, its chemical and physical properties.
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A base is defined as any substance which releases hydroxyl ions (OH-) when dissolved in water. Bases which are soluble in water are called alkalies. This note about bases provides information about bases its properties and common uses.
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A salt is a compound formed by the partial or complete neutralization of an acid by a base. Basic properties of salt include its salty or bitter taste, solubility in water and its unique coloration. This note provides information about properties, preparation, uses of salts.
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An indicator is a substance which changes color in the presence of acids or alkalis. The pH scale is a standard scale, which is used for measuring the approximate strength of an acid or an alkali solution. This note provides an information about the indicator, its type and features.
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