Which of the following statements is incorrect?
- A$Fe^{3+}$ ion also gives blood red colour with $SCN^{-}$ ion.
- B$Fe^{2+}$ ion also gives blood red colour with $SCN^{-}$ ion.
- COn passing $H_2S$ into $Na_2ZnO_2$ solution a white ppt of $ZnS$ is formed.
- DCupric ion reacts with excess of ammonia solution to give deep blue colour of $[Cu(NH_3)_4]^{2+}$ ion.
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Aqueous solution of $FeSO_4$ does not produce a precipitate with:
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View Solution$A$ compound is soluble in water. If ammonia is added,a red precipitate appears which is soluble in dilute $HCl$. The compound contains:
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View SolutionUpon treatment with ammoniacal $H_2S$,the metal ion that precipitates as a sulfide is
$A$ solution,when diluted with $H_2O$ and boiled,gives a white precipitate. On the addition of excess $NH_4Cl / NH_4OH$,the volume of the precipitate decreases,leaving behind a white gelatinous precipitate. Identify the precipitate which dissolves in $NH_4OH / NH_4Cl$.
$A$ $0.3 \, M$ $HCl$ solution contains the following ions: $Hg^{2+}, Cd^{2+}, Sr^{2+}, Fe^{2+}, Cu^{2+}$. The addition of $H_2S$ to the above solution will precipitate which of the following?
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