Transcription of NIT-7 YSTEMATIC QUALITATIVE NALYSIS - NCERT
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NIT-7 YSTEMATIC QUALITATIVE NALYSIS - NCERT
UNIT-7 SYSTEMATIC QUALITATIVEANALYSISANALYSIS always does not mean breaking of substance into its ultimateconstituents. Finding out the nature of substance and identity ofits constituents is also analysis and is known as QUALITATIVE analysis of inorganic salts means the identification of cations andanions present in the salt or a mixture of salts. Inorganic salts may be obtainedby complete or partial neutralisation of acid with base or vice-versa. In theformation of a salt, the part contributed by the acid is called anion and the partcontributed by the base is called cation. For example, in the salts CuSO4 andNaCl, Cu2+ and Na+ ions are cations and SO42 and Cl ions are anions. Qualitativeanalysis is carried out on various scales.
(iii) Determination of cations by reactions carried out in solution (wet tests) and confirmatory tests. Preliminary examination of a salt often furnishes important information, which ... Solubility of a salt in water and the pH of aqueous solutions give important information about the nature of ions present in the salt. If a solution of the salt is
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