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Borax bead test : The transparent glassy bead while heated along with inorganic salt and the colour produced gives some idea of cation present in it.
Table:
Colour of bead in oxidising flame
Colour of bead in reducing flame
Basic radical present
Greenish when hot, blue in cold.
Red and opaque
Cu
Dark green in hot and cold
Same
Cr
Deep - blue
Deep blue
Co
Yellow when hot
Green
Fe
Violet in hot and cold
Colourless
Mn
Brown in cold
Grey or black or opaque
Ni
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Atomic spectroscopy: Atomic spectroscopy is the oldest instrumental method of elemental analysis. The origin of these methods dates back to the times of Bunsen and Kirchhoff i
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Name the common element present in the anode mud in electro refinig of copper. Ans) ANTOMONY ,STRONSIUM,SELENIUM,TELLURIUM,SILVER,GOLD AND PLATINUM . THESE ELELMENTS ,BEING LESS R
What are the basic physical and chemical properties of this group
Atoms or group of atoms which are electrically charged are known: (1) Anions (2) Cations (3) Ions (4) Atoms Ans:
Hittorf Method of determing transport numbers
characteristics of irreversible reaction
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