React with Br2 & I2 Higher Question

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The discussion centers on identifying which species reacts with Br2 but not with I2, with the answer being Fe2+. The user expresses confusion about the reasoning behind this conclusion, questioning the role of electronegativity and redox potentials. Another participant clarifies the concept, helping to alleviate the user's anxiety before their exam. The importance of understanding redox potentials in relation to reactivity is emphasized. The conversation highlights the urgency of grasping these concepts for exam preparation.
CheesyPeeps
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Reaction score
2

Homework Statement


Which of the following will react with Br2 but not with I2?
A OH−
B SO3 2−
C Fe2+
D Mn2+

Homework Equations


N/A

The Attempt at a Solution


The answer given in the marking scheme is C, and I can't figure out how to come to that conclusion. Is it something to do with electronegativity? London dispersion forces? My exam is tomorrow morning and I'm freaking out about this just a little...!
 
Last edited:
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Redox potentials.
 
Borek said:
Redox potentials.

Ah, that makes sense! Thank you very much :smile:
 

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