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Q. Borax bead test of Cr (chromium) is

JamiaJamia 2006

Solution:

In borax bead test
$ C{{u}^{2+}} $
gives
Bluish green bead
$ C{{r}^{3+}} $
Gives
Dark green bead
$ N{{i}^{2+}} $
Gives
brown bead
$ M{{n}^{2+}} $
Gives
pink bead