12- When dissolving iron in diluted hydrochloric acid, then adding NaOH
Solution to the products.
1- The formed precipitate is
(a) White gelatinous dissolve in sodium hydroxide solution.
(b) Reddish brown precipitate dissolves in diluted hydrochloric acid
(C) Pale green precipitate dissolves in diluted hydrochloric acid
(d) Pale green precipitate dissolves in sodium hydroxide solution.
Answers
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C)Pale green precipitate dissolves in diluted hydrochloric acid
is the correct answer.
As, ferrous chloride will be formed(lower chloride-FeCl2), which reacts wih NaOH solution forming a pale green/dirty green precipitate which is insoluble in excess NaOH but soluble in dilute hydrochloric acid.
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