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JEE Main
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Chemistry
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Practical Chemistry

JEE Main · Chemistry · Practical Chemistry

Neutral ferric chloride is added to the aqueous solution of...

Neutral ferric chloride is added to the aqueous solution of acetate. The blood red colour is obtained, it is due to the compound

Options

  1. AFe(OH)2\text{F}\text{e} ( \text{O}\text{H}{)}_{2}
  2. BFe(OH)3\text{F}\text{e} ( \text{O}\text{H}{)}_{3}
  3. C[Fe3(CH3COO)6(OH)2]+{\left[\text{F}{\text{e}}_{3}{\left(\text{C}{\text{H}}_{3}\text{C}\text{O}\text{O}\right)}_{6}{\left(\text{O}\text{H}\right)}_{2}\right]}^{+}
  4. DFe(OH)2(CH3COO)\text{F}\text{e} ( \text{O}\text{H}{)}_{2} ( \text{C}{\text{H}}_{3}\text{C}\text{O}\text{O} )

Correct answer

C. [Fe3(CH3COO)6(OH)2]+{\left[\text{F}{\text{e}}_{3}{\left(\text{C}{\text{H}}_{3}\text{C}\text{O}\text{O}\right)}_{6}{\left(\text{O}\text{H}\right)}_{2}\right]}^{+}

Step-by-step solution

3CH3COONa+FeCl3(Neutral)→[Fe3(OH)2(CH3COO)6]Bloodred++3NaCl3\text{C}{H}_{3} \text{C}\text{O}\text{O}\text{N}\text{a} + \mathop{\text{F}\text{e}\text{C}{l}_{3}}_{( \text{N}\text{e}\text{u}\text{t}\text{r}\text{a}\text{l} )} \to {\mathop{[ \text{F}{e}_{3} {( \text{O}\text{H} )}_{2} {( \text{C}{H}_{3} \text{C}\text{O}\text{O} )}_{6} ]}_{\text{B}\text{l}\text{o}\text{o}\text{d}\text{r}\text{e}\text{d}}}^{+} + 3\text{N}\text{a}\text{C}\text{l}
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