When H2S gas is passed through a hot acidic aqueous solution containin – InterviewSolution

1.	When H2S gas is passed through a hot acidic aqueous solution containing Cr3+, Cd2+, Hg2+ and Co2+, a precipitate is formed which does not consist of :
Answer» When $H_{2} S$ gas is passed through a hot acidic aqueous solution containing $C r^{3 +}, C d^{2 +}, H g^{2 +} a n d C o^{2 +},$ a precipitate is formed which does not consist of :

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