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Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloi…

Q1

Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloidal species. It is: [JEE Main 2021, 27 Aug (Shift 1)]

a

\(\mathrm{KFe \left[ Fe ( CN )_6\right]}\)

b

\(\mathrm{K _5 Fe \left[ Fe ( CN )_6\right]_2}\)

c

\(\mathrm{Fe _4\left[ Fe ( CN )_6\right]_3}\)

d

\(\mathrm{HFe \left[ Fe ( CN )_6\right]}\)

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