JEE MAIN - Chemistry (2024 - 29th January Evening Shift - No. 16)
A reagent which gives brilliant red precipitate with Nickel ions in basic medium is
dimethyl glyoxime
sodium nitroprusside
meta-dinitrobenzene
neutral $$\mathrm{FeCl}_3$$
Explanation
$$\mathrm{Ni}^{2+}+2 \mathrm{dmg}^{-} \rightarrow\left[\mathrm{Ni}(\mathrm{dmg})_2\right]$$
Rosy red/Bright Red precipitate
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