In The Volumetric Estimation Of Fe(II), With  in Acidic Medium, K3[Fe(CN)6] Is Used As An External Indicator. The End Point Will Be Reached When The Solution Of Iron Salt

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Question

In the volumetric estimation of Fe(II), with  in acidic medium, K3[Fe(CN)6] is used as an external indicator. The end point will be reached when the solution of iron salt

Solution

Correct option is

Ceases to give blue colour with indicator

 

Fe(II) gives blue colour with K3[Fe(CN)6] but Fe(III) does not. 

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