Verified Solution • 2025–26 Session moderate

QJEEM22Chc531: JEE Main 2022 Chemistry - Class 12 JEEM22Chc531 Solution: During the qualitative analysis of salt with cation y 2+ ,…

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 :

Multiple Choice Options

  • A Dimethylglyoxime and Ni2+
  • B Dimethylglyoxime and Co2+
  • C Nessler's reagent and Hg2+
  • D Nessler's reagent and Ni2+

Step-by-Step Verified Solution

On addition of dimethylglyoxime to alkaline solution of Ni+2\mathrm{Ni}^{+2} , a bright red ppt. is obtained.

Ni+2+2dmg→[Ni(dmg)2]+2\mathrm{Ni}^{+2}+2 \mathrm{dmg} \rightarrow\left[\mathrm{Ni}(\mathrm{dmg})_{2}\right]^{+2} (Bright red ppt)

Related Learning Resources & Exam Preparation

JEE Main PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring