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  • Which of the following can be detected by the borax bead test ? Option: 1 <img alt="Ni^+" src="https://learn.careers360.com/latex-image/?Ni%5Ea

Which of the following can be detected by the borax bead test ? 

Option: 1

Ni^+


Option: 2

Co^{2+}


Option: 3

Pb^{2+}


Option: 4

Both a and b 


Answers (1)

best_answer

Borax bead -

Used for the detection of coloured basic radicals in borax bead test.

NiO+ B_2O_3\rightarrow Ni(BO_2)_2

CoO+B_2O_3\rightarrow Co(BO_2)_2

Therefore,option (4) is correct.

Posted by

Nehul

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