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  4. Which of the following will not form when NaHCO3 solution is added to aqueous FeCl3 solution?

Q. Which of the following will not form when $NaHCO_{3}$ solution is added to aqueous $FeCl_{3}$ solution?

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Solution:

$FeCl_{3}+NaHCO_{3} \rightarrow Fe\left(\right.OH\left(\left.\right)_{3}+CO_{2}+NaCl$

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