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Chemistry-

General

Easy

Question

A black colored compound(A)on reaction with dil. H₂SO₄ gives a gas(B)which onpassingin a solution of anacid (C) gives a white turbidity (D). Gas (B)when passed in an acidified solution of a compound(E) gives a black precipitate (F) which is soluble in hot concentrated (C).After boiling this solution whene xcess of ammonia solution is added, a blue colored compound (G) is formed. To the solution of(E), onaddition of acetic acid and aqueous potassium ferrocyanide, a chocolate brown precipitate (H) is formed.OnadditionofanaqueoussolutionofBaCl₂toan aqueoussolutionof(E),white precipitate insoluble in HNO₃isobtained. To which of the following property, will the compound(E)respond?

It gives white precipitate with(CH3COO)₂Pb solution soluble in ammonium acetate
It gives dirty white precipitate with KI
Its hydrate dsalteffloresces
All of these

The correct answer is: All of these

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