A white amorphous powder A on heating yields a colourless, non-combustible gas `B` and a solid `C`. The later compound a

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Q 2617856780.     A white amorphous powder A on heating yields a colourless, non-combustible gas `B` and a solid `C`. The later compound assumes a yellow colour on heating and changes to white on cooling. `C` dissolves in dilute hydrochloric acid and the resulting
solution gives a white precipitate with `K_4 Fe(CN)_6`, solution. A dissolves in dil . `HCl` with the evolution of gas, which is identical in all respect with `B`.
The gas `B` turns lime water milky. but the milkiness disappears with the continuous passage of gas. The solution of A as obtained above, gives a white ppt Eon addition of `NaOH` solution, which dissolves on further addition of base. Identify the compounds A , B, C, D and E.
JEE 1979

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(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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