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Q.

During the Qualitative analysis of salt with cation Y2+ , addition of a reagent (X) to alkaline solution
of the salt gives a bright red precipitate. The reagent (X) and the cation (Y2+) present respectively are:

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a

 Nessler's reagent and Hg2+

b

 Dimethylglyoxime and Ni2+

c

 Nessler's reagent and Ni2+

d

 Dimethylglyoxime and Co2+

answer is A.

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Detailed Solution

Ni2++DMGNi(DMG)2(Bright red precipitate)  

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