PARAGRAPH II
When potassium iodide is added to an aqueous solution of potassium ferricyanide, a reversible reaction is observed in which a complex 
is formed. In a strong acidic medium, the equilibrium shifts completely towards 
. Addition of zinc chloride to 
in a slightly acidic medium results in a sparingly soluble complex 
.
(i) The number of moles of potassium iodide required to produce two moles of 
is .
(ii) The number of zinc ions present in the molecular formula of 
is .
Text Solution
Verified by Experts(I) (2); (II) (3)
(i) (2) (ii) (3)
(i)
From this equation we need 2 mol of 
(ii)
From this equation we need 2 mol of 
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