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Salt Analysis question

2009 · Shift 1 · Q15

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JEE Advanced
Chemistry
Salt Analysis
2009 · Shift 1 · Q15

Salt Analysis question

2009 · Shift 1 · Q15

JEE AdvancedChemistrySalt AnalysisMCQ+3 / −1

p-Amino-N, N-dimethylaniline is added to a strongly acidic solution of X. The resulting solution is treated with a few drops of aqueous solution of Y to yield blue colouration due to the formation of methylene blue. Treatment of the aqueous solution of Y with the reagent potassium hexacyanoferrate(II) leads to the formation of an intense blue precipitate. The precipitate dissolves on excess addition of the reagent. Similarly, treatment of the solution of Y with the solution of potassium hexacyanoferrate(III) leads to a brown coloration due to the formation of Z.The compound Z is

A
$M{g_2}[Fe{(CN)_6}]$
B
$Fe[Fe{(CN)_6}]$
C
$F{e_4}{[Fe{(CN)_6}]_3}$
D
${K_2}Z{n_3}{[Fe{(CN)_6}]_2}$

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