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 An aqueous solution of gas (X) gives the following reactions. 

(i) It decolourizes on acidified K2 Cr2 O7 solution. 

(ii) On boiling it with H2O2 , cooling it and then adding an aqueous solution of BaCl2 a ppt. insoluble in dilute hydrochloric acid is obtained. 

(iii) On passing H2S in the solution, a white turbidity is obtained. Identify (X) and gives equations for the reactions at steps (i),(ii) and (iii).

1 Answer

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Best answer

 R + K2 Cr2 O7 → Decolourises

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