$A$ laboratory reagent imparts green colour to the flame. On heating with solid $K_2Cr_2O_7$ and conc. $H_2SO_4$,it evolves a red gas. Identify the reagent.
- A$CaCl_2$
- B$BaCl_2$
- C$CuCl_2$
- DNone of these
Explore More
Similar Questions
Reagents used for the qualitative estimation of $Ni^{+2}$ and $Cu^{+2}$ respectively are:
Medium
View SolutionWhich ion is detected using Nessler's reagent?
Medium
View SolutionWhich of the following is sparingly soluble in cold water and fairly soluble in hot water?
Medium
View SolutionThe yellow precipitate formed during the chromyl chloride test is chemically
MediumKCET 2011
View SolutionUpon treatment with ammoniacal $H_2S$,the metal ion that precipitates as a sulfide is
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo