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

Question

An ammoniacal metal salt solution gives a brilliant red precipitate on addition of dimethylglyoxime. The metal ion is: (A) Co 2+ (B) Fe 2+ (C) Ni 2+ (D) Cu 2+

Tardigrade Admin · Accepted Answer

Ni +2+2 DMG xrightarrow NH 3( aq ) underset textRosy Red complex [ Ni ( DMG )2]

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

$C o^{2 +}$

$F e^{2 +}$

$N i^{2 +}$

$C u^{2 +}$

$N i^{+ 2} + 2 D MG N H_{3} (a q) Rosy Red complex [N i (D MG)_{2}]$

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

Co2+

Fe2+

Ni2+

Cu2+

Ni+2+2DMGNH3​(aq)​Rosy Red complex [Ni(DMG)2​]​

$C o^{2 +}$

$F e^{2 +}$

$N i^{2 +}$

$C u^{2 +}$

$N i^{+ 2} + 2 D MG N H_{3} (a q) Rosy Red complex [N i (D MG)_{2}]$