An ammoniacal metal salt solution gives a bri | vedclass

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Question

(D) Dimethylglyoxime $(DMG)$ is a specific chelating agent used for the detection of $Ni^{2+}$ ions.In the presence of an ammoniacal solution,$Ni^{2+}

Vedclass · Accepted Answer

$Ni^{2+}$

Vedclass · Answer

(D) Dimethylglyoxime $(DMG)$ is a specific chelating agent used for the detection of $Ni^{2+}$ ions.In the presence of an ammoniacal solution,$Ni^{2+}$ reacts with $DMG$ to form a stable,brilliant red-colored complex,bis(dimethylglyoximato)nickel$(II)$.The reaction is: $Ni^{2+} + 2C_4H_8N_2O_2 \xrightarrow{NH_3} [Ni(C_4H_7N_2O_2)_2] + 2H^+$.Therefore,the metal ion is $Ni^{2+}$.

An ammoniacal metal salt solution gives a brilliant red precipitate on the addition of dimethylglyoxime. The metal ion is:

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