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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
The energy of the electron in the first orbit of He + is -871.6x 10 -20 J . The energy of the electron in the first orbit of hydrogen would be : (1) -871.6 x10 -20 J
Develop a table for the water quality parameters of surface water (rivers and lakes), and groundwater. A sample table is given below: Water quality parameters of different
if the eluting solvent was chnaged would Rf value for each metal ion will chang
Q. Explain about Smelting process? The roasted ore, which is generally an oxide, is strongly heated with a suitable reducing agent as result of which the metal is acquired in a
Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
how does chemical bonding takes place?
Explain about the interstitial defects An interstitial is an atom that occupies a place outside the normal lattice position. It might be the similar type of atom as the others
giving correct formulas give the reactantsand products in the formation of poly2 butane
Types of rocket propellants: Depending on the physical state, propellants can be categorized as: a. Hybrid propellants b. Liquid propellants c. Solid propellants
how many process there are to extracte copper from copperpyrites/
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