Borax bead test - chemical analysis, Chemistry

Assignment Help:

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


Related Discussions:- Borax bead test - chemical analysis

Explain oriental polarisation, Explain oriental polarisation. Orienta...

Explain oriental polarisation. Orientational Polarisation: When two different atoms form a chemical bond, one of the two is more probable to part with one or more of valence

Valence Electrons, why is the valence electron 4s2 in the elelment Sc21 an...

why is the valence electron 4s2 in the elelment Sc21 and not 3d1?

Amount of heat , A 0.5 m 3 rigid tank is filled with saturated liquid wate...

A 0.5 m 3 rigid tank is filled with saturated liquid water at 200 o C. A valve at the bottom of the tank is opened, and liquid is withdrawn from the tank. Heat is transferred to t

The number of orbitals in d sub-shell is, The number of orbitals in d  sub...

The number of orbitals in d  sub-shell is : (1) 1        (2) 3        (3) 5        (4) 7 Ans: 5

Uses of acetylene - hydrocarbon, Uses of Acetylene (a) Acetylene is uti...

Uses of Acetylene (a) Acetylene is utilized as an illuminant. (b) It is utilized for the production of oxy-acetylene flame. The high temperature of the flame is above. Is ut

Define why the glocose and fructose form the same osazone, Glucose and fruc...

Glucose and fructose are epimers so they are differ in their second carbon position and remaining is same so when they react with phenylhydrazeen they give same osazone

Non - ideal solutions exhibit either positive or negative, Non - ideal solu...

Non - ideal solutions exhibit either positive or negative deviations from  Roulette's law. What are these deviations and why are they caused? Explain with one example for each t

Indicators , what are the diferent types of indicators and describe them

what are the diferent types of indicators and describe them

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd