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Qualitative Analysis: Cations

220 questions in 6 topics. 44 NEET level, 88 JEE Main, 88 JEE Advanced. Every question was written for this chapter and solved independently a second time before publication.

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Group reagents and group separation logic 27

Which reagent is used as the group reagent to precipitate the group I cations (such as Ag+ and Pb^2+) from the...
The group reagent for the precipitation of group III cations (Fe^3+, Al^3+, Cr^3+) as hydroxides is
Solid NH4Cl is added before NH4OH in the group III analysis mainly because it
Group V cations (Ba^2+, Sr^2+, Ca^2+) are precipitated as carbonates using
Among the following sulphides precipitated in group IV (by H2S in ammoniacal medium), the white one is
Group II cations are precipitated by passing H2S into the solution made about 0.3 M in HCl. The role of the HC...
Zn^2+ is not precipitated when H2S is passed into a solution containing dilute HCl, because
The filtrate from group II is boiled before the group III reagent is added. The main purpose is to
All 27 questions on this topic

Qualitative Analysis: Cations

Group reagents and group separation logic 27

Group I and group II cations (Pb, Cu, Bi, Cd, As, Sb, Sn) 46

Group III cations (Fe, Al, Cr) 46

Group IV cations (Zn, Mn, Ni, Co) 27

Group V and VI cations (Ba, Sr, Ca, Mg) and NH4+ 47

Confirmatory tests and coloured precipitates 27