1.

A solution containing Fe^(3+) is titrated against a standard solution of Ti^(3+) using ammonium thiocyanate as indicator. The colour of the solution at end point will be

Answer»

Red
Colourless
Blue
`Fe^(3+)` is not OXIDIZED by `TI^(3+)`

Solution :`Ti^(3+)` is used in volumetric analysis for the determination of `Fe^(3+)` and also organic nitro COMPOUNDS. In the iron titration the end point may be detected with ammonium thiocyanate which REMAINS red whilst any `Fe^(3+)` is present and becomes colourless at the end point, or by methylene blue which is reduced and decolorized as SOON as `Ti^(3+)` is in excess.


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