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

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

JEE MainJEE Main 2023The p-Block Elements - Part2

Solution:

$ Ni ^{+2}+2 DMG \xrightarrow{ NH _3( aq )}\underset{\text{Rosy Red complex }}{\left[ Ni ( DMG )_2\right]} $