define base.......
class 10 science ..chemistry
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Bases are those substances which have bitter taste. They turn red litmus to blue. Those bases which are soluble in water are called alkali. For Example: NaOH,KOH, Mg(OH) 2 , NH 4OH. A base is a substance which dissolves in water to produce hydroxide ion in solution.
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A base is a substance which dissolves in water to produce hydroxide ion in solution. NH4OH ⇌ NH4+ + OH– NaOH(s) → Na+(aq) + OH–(aq) When the solution of a base is diluted by mixing water to it, then the concentration of hydroxide ions decreases .
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