Question

A reagent used for identifying nickel ion is
(a) potassium ferrocyanide
(b) phenolphthalein
(c) dimethyl glyoxime
(d) EDTA​

Answer 1

$\huge\underline \mathfrak \blue{Answer}$

$\Large\boxed{dimethyl\:glyoxime}$

Correct Option :- (b) Dimethyl glyoxime

Explanation: Nickel salt reacts with dimethyl glyoxime in the presence of NH4OH to give scarlet red ppt. of nickel dimethyl glyoxime.

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Answer 2

QuesTion :-

A reagent used for identifying nickel ion is

(a) potassium ferrocyanide

(b) phenolphthalein

(c) dimethyl glyoxime

(d) EDTA​

 

AnswEr :-

Option C Dimethyl glyoxime is correct.

Reason :-

It is a dye complex used for fabrication and used as reagent in complexes.