In IV group analysis NH 4 OH is added before passing H 2 S gas because:
Chemistry · NEET · NTA Exams — Principles Related to Practical Chemistry
In IV group analysis NH4OH is added before passing H2S gas because:
- the sulphides of IV group are insoluble in NH4OH.
- the sulphides of other metals are soluble in NH4OH.
- the concentration of S2- ions is high enough to precipitate the sulphides of IV group.
- the sulphides of second group are soluble in NH4OH.
Answer
(C) the concentration of S 2 - ions is high enough to precipitate the sulphides of IV group.
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- In group V, (NH 4 ) 2 CO 3 is added to precipitate out carbonates. In place of (NH 4 ) 2 CO 3 , why Na 2 CO 3…
- A gas is evolved which burns with blue flame when the mixture is heated with conc. H 2 SO 4 . The mixture…
- Which of the following reagents may be used to distinguish between phenol and benzoic acid?
- If Fe 3 + and Cr 3 + both are present in group III of qualitative analysis, then distinction can be made by:
- A certain light green salt gives ammonia on heating with NaOH solution. Its aqueous solution gives white…
- A salt made of bivalent ions X and Y, each of which is capable of decolourising acidified KMnO 4 solution…
More Principles Related to Practical Chemistry questions · Browse all practice questions