Duration: 5:18

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Two solutions \( (A) \) containing \( \mathrm{FeCl}_{3}(a q) \) and \( (B) \) containing \( \mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] \) are separated by semipermeable membrane as shown below. If \( \mathrm{FeCl}_{3} \) on reaction with \( \mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] \), produces blue colour of \( \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] \), the blue colour will be noticed in:
(A) \( (A) \)
(B) \( (B) \)
(C) in both \( (A) \) and \( (B) \)
(D) neither in \( (A) \) nor in \( (B) \)
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