Explanation
Sn2+ can be precipitated by H2S but not by HCl.
K+ is detected by the flame test
Both Bi3+ and Sn4+ belongs to group II of qualitative inorganic analysis and will get precipitated by H2S
Ag3PO4 is yellow ppt. which is soluble in NH4OH and dil. HNO3.
KOH is highly soluble in water.
Ferri-ferrocyanide (Prussian blue )
HgCl2 due to its covalent nature will not give chromyl chloride test
PbI2 is yellow and is called golden spangles
CrCl3 is coloured because Cr3+ (3d3) is a transition metal ion
This reagent is for group III and Al3+ will be precipited as its hydroxide
Al3+ will not be precipitated by H2S in presence of HCl
Na (NH4)HPO4.4H2O is microcosmic salt used for bead test for coloured salts in place of borax
has the highest solubility in 10-3 M NH4OH All other solvents will dissolve AgBr Poorly AgBr
HgS is not soluble in hot dil. HNO3
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