Analytical ChemistryHard
Question
A dark green bead in the borax bead test (in oxidising flame) indicates the presence of :
Options
A.Cr3+
B.Mn2+
C.Co2+
D.Ni2+
Solution
Cr3+ forms dark green chromium metaborate Cr(BO2)3 in oxidising flame (in cold).
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
A white sodium salt dissolves in water to give a solution which is neutral to litmus. When silver nitrate solution is ad...A metal salt solution when treated with dimethyl glyoxime and NH4OH gives a rose red complex. The metal is -...An aqueous solution FeSO4.Al2(SO4)3 and chrome alum is heated with excess of Na2O2 and filtered. The materials obtained ...White precipitate of PbSO4 gets dissolved in :...Which onr amongst the following pairs of ions cannot be separated by H2S in dilute HCL ?...