Why is blue light used to find the absorbance of FeSCN2+ which is reddish?
Why is blue light used to find the absorbance of FeSCN2+ which is reddish?
Homework Answers
Color of the compound depends on region of the elctromagnetic radiation absorbed by the compound. Generally colored compounds absorbed in visible region of the electromagnetic radiation.
If the compound absorbs light with one color its complementary color will be observed. These two colors are known as complementary color pairs.
FeSCN^2+ ion exhibits red color, so it has to absorb complementary color of red color.
Complementary color of red color is greenish blue color.
Hence blue light has to be used to find the absorbance of FeSCN^2+.
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Why is blue light used to find the absorbance of
FeSCN2+ which is reddish?
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