Question

in borax bead test which of the following matches correct
a) NI^2+ -Green
b) Fe^3+ -Blue
c) Co^2+ -blue
d) Cu^2+ -yellow

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Answer 1

Answer:

c) Co^2+ - Blue

It's a fact and it is important to note that Co^2+ gives blue colour in both high and low intensity flames.

Answer 2

Answer:

(C) Co^2 + -blue

in borax bead test, cobalt's shows oxidizer flame color is deep blue( hot & cold), it is opaque.

hope it will help you and please mark it as brainliest.