Transcription of NIT-7 YSTEMATIC QUALITATIVE NALYSIS
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NIT-7 YSTEMATIC QUALITATIVE NALYSIS
UNIT-7. SYSTEMATIC QUALITATIVE . ANALYSIS. A. NALYSIS always does not mean breaking of substance into its ultimate constituents. Finding out the nature of substance and identity of its constituents is also analysis and is known as QUALITATIVE analysis. QUALITATIVE analysis of inorganic salts means the identification of cations and anions present in the salt or a mixture of salts. Inorganic salts may be obtained by complete or partial neutralisation of acid with base or vice-versa. In the formation of a salt, the part contributed by the acid is called anion and the part contributed by the base is called cation.
(b) If the salt is soluble in water , take the solution of salt in water make it alkaline with ammonium hydroxide and add sodium nitroprusside solution. If it is insoluble in water take sodium carbonate extract and add a few drops of sodium nitroprusside solution. Purple or violet (a) Take 0.1 g of salt in a china dish. Add 1 mL of ethanol
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