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An aqueous blue coloured solution of …

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An aqueous blue coloured solution of transition metal sulphate reacts with H2S in acidic medium to give black precipitate A which is insoluble in warm KOH .The blue solution on treatment with KI in weakly acidic medium turns yellow and produces a white precipitate B.Identify the transition metal ion.Write the chemical reaction involved in formation of A and B.

Posted by Ankush Awasthi 6 years, 9 months ago

CBSE > Class 12 > Chemistry

3 answers

Ayushi Tyagi 6 years, 9 months ago

Gud anshu

3Thank You

Anurag Yadav 6 years, 9 months ago

It means that A is CuS(copper sulphide) and B is CuI(copper iodide)

1Thank You

Anurag Yadav 6 years, 9 months ago

Copper is the transition metal and blue aqueous solution is of CuSO4.reaction for A is-CuSO4+H2S- CuS+H2SO4. For B....CuSO4+KI------CuI+I2+k2so4..

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