Multiple choice

Which of the following cations will show red precipitate with dimethylglyoxime in ammoniacal solution?

  1. Ni2+

  2. Co2+

  3. Zn2+

  4. Cr3+

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Correct option is (1). The complex of Ni+2 dimethyl glyoxime is red, that of Co+2 is orange to light brown, that of Cr3+ is yellow and that of Zn2+ is white.