Comprehension
The reaction of K3[Fe(CN)6] with freshly prepared FeSO4 solution produces a dark blue precipitate called Turnbull’s blue. The reaction of K4[Fe(CN)6] with the FeSO4 solution in the complete absence of air produces a white precipitate X, which turns blue in the air. Mixing the FeSO4 solution with NaNO3, followed by slow addition of concentrated H2SO4 through the side of the test tube produces a brown ring.
Question: 1
Precipitate X is
Precipitate X is
Updated On: May 24, 2024
Fe4[Fe(CN)6]3
Fe4[Fe(CN)6]
K2Fe[Fe(CN)6]
KFe[Fe(CN)6]
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The Correct Option is C
Solution and Explanation
The correct answer is K2Fe[Fe(CN)6]
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Question: 2
Among the following, the brown ring is due to the formation of
Among the following, the brown ring is due to the formation of
Updated On: May 23, 2024
\([Fe(NO)_2(SO_4)_2]^{2-}\)
\([Fe(NO)_2(H_2O)_4]^{3+}\)
\([Fe(NO)_4(SO_4)_2]\)
\([Fe(NO)(H_2O)_5]^{2+}\)
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The Correct Option is D
Solution and Explanation
The correct answer is \([Fe(NO)(H_2O)_5]^{2+}\) option (D)
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