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Question
Which indicator we prefer to use in iodometric titration?
Which indicator we prefer to use in iodometric titration?
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Solution
The correct option is A Starch
Iodometry, also known as iodometric titration, is a method
of volumetric chemical analysis, a redox titration where the appearance or
disappearance of elementary iodine indicates the end point.
The indicator that is usually chosen for titrations
involving iodine is starch. Starch forms a dark blue complex with iodine. The
end point in iodimetry corresponds to a sudden color change to blue. Likewise
the end point in iodometry corresponds to a sudden loss of blue color due to
the complex.
Iodometry, also known as iodometric titration, is a method of volumetric chemical analysis, a redox titration where the appearance or disappearance of elementary iodine indicates the end point.
The indicator that is usually chosen for titrations involving iodine is starch. Starch forms a dark blue complex with iodine. The end point in iodimetry corresponds to a sudden color change to blue. Likewise the end point in iodometry corresponds to a sudden loss of blue color due to the complex.
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