Upon treatment with ammoniacal H2S, the metal ion that precipitates as a sulfide is

Engineering

Chemistry

Test of Cations and Anions

Question

Upon treatment with ammoniacal H₂S, the metal ion that precipitates as a sulfide is

Mg(II)

Al(III)

Fe(III)

Zn(II)

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IInd group and IV^th group metals ions are ppt in form of sulphides.

Fe (III) and Al (III) $\to$ III^rd group

Zn (II) $\to$ IV^th group

Mg (II) $\to$ V^th group