A salt gives white residue in charcoal cavity test but in cobalt nitra – InterviewSolution

InterviewSolution

1.	A salt gives white residue in charcoal cavity test but in cobalt nitrate test it gives pink mass. It represents :
Answer» `ZN^(+2)` `AL^(+3)` `Mg^(+2)` `PO_(4)^(-3)` Answer :C

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