InterviewSolution
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InterviewSolution
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a. (A) (yellow coloured solution ) changes to light green coloured solution (B) on passing H_(2)S gas (A) and (B) both give white ppt. with BaCI_(2) solution, insoluble in conc. HCI(A) given blue coloured ppt (C ) with K_(4)[F2(CN)_(6)] B does not .What are (A),(B) and (C )? b. Identify A,B,C and D in the following reactions Bauxite + chemical + CI_(2) overset(Delta) to A + CO A + H_(2)O rarr B + HCI, B + H_(2)SO_(4) rarr C + H_(2)O B + NaOH rarr D + H_(2)O |
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Answer» Solution :(A) `FeCI_(3)` (B) `FeCI_(2)` (C ) `KFe^(III)[Fe^(II)(CN)_(6)]` prussian blue b. `underset("Bauxite")(AI_(2)O_(3)) + 3C +3CI_(2) overset(Delta ) to underset((A))(2AICI_(3)) + 3CO` `underset((A))(AICI_(3)) + 3H_(2)O rarr underset((B))(AI(OH)_(3)) + 3HCI` `underset((B))(2AI(OH)_(3)) + 3H_(2)SO_(4) rarr underset((C))(AI_(2)(SO_(4))_(3)) + 6H_(2)O` `underset((B))(AI(OH)_(3)) + NAOH rarr underset((D))(NaAIO_(2)) + 2H_(2)O` |
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