Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB

ChemistryMediumsingle choice

In which of the following reaction given information is incorrect

Options:

Answer:

Solution:

Reaction (C) explanation: While lead acetate reacts with sodium chromate to form a yellow precipitate of lead chromate ( $P b C r O_{4}$ ), this precipitate is soluble in an alkaline medium ( $O H^{-}$ ). It dissolves by reacting with excess hydroxide ions to form a clear, soluble tetrahydroxoplumbate(II) complex, $[P b (O H)_{4}]^{2 -}$ .

Therefore, the information stating that a yellow precipitate remains in the presence of $O H^{-}$ is incorrect.

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...