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A coloured compound (A) reacts with dilute H_(2)SO_(4) to produce a colourless gas (B) and colourless solution (C). The reaction between (B) and the acidified K_(2)Cr_(2)O_(7) solution produces a green solution and a slightly yellowise precipitate (D). the substance (D) burns in air to produce a gas (E) which also can change the colour of K_(2)Cr_(2)O_(7) solution. Q. When "B" reacts with "E" |
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Answer» A new gas F will be produced |
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