As per Hardy - Schulze formulation , the flocculation values of the following for ferric hydroxide sol are in
\( \mathrm{P} \) the order :
[JEE Main-2020 (January)]
W
(1) \( \mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\mathrm{K}_{2} \mathrm{CrO}_{4}\mathrm{KBr}=\mathrm{KNO}_{3}=\mathrm{AlCl}_{3} \)
(2) \( \mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\mathrm{K}_{2} \mathrm{CrO}_{4}\mathrm{AlCl}_{3}\mathrm{KBr}\mathrm{KNO}_{3} \)
(3) \( \mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\mathrm{AlCl}_{3}\mathrm{K}_{2} \mathrm{CrO}_{4}\mathrm{KBr}\mathrm{KNO}_{3} \)
(4) \( \mathrm{AlCl}_{3}\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]\mathrm{K}_{2} \mathrm{CrO}_{4}\mathrm{KBr}=\mathrm{KNO}_{3} \)
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