The colour of freshly precipitated $\mathrm{Cr}(\mathrm{OH}){}_3$ is

More questions on Group III cations (Fe, Al, Cr)

• Group III cations (Fe^3+, Al^3+, Cr^3+) are precipitated as hydroxides by the group reagent, which is NEET level
• A white gelatinous precipitate that dissolves in excess NaOH to give a clear solution is most likely NEET level
• On adding potassium thiocyanate solution to a solution of Fe^3+, the colour obtained is NEET level
• In the group III analysis, NH4Cl is added before NH4OH mainly to NEET level
• A pale-green solution gives a deep blue precipitate with K3[Fe(CN)6] and no blood-red colour with KSCN. The cation present is JEE Main level
• Before adding NH4Cl and NH4OH for group III, the filtrate from group II is boiled with a few drops of concentrated HNO3. The main purpose is... JEE Main level