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Redox Reactions — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryRedox Reactions2 Marks
Question
Br2 + 2Cl- → Cl2 + 2Br-, will this reaction take place or not?
$\text{E}^0_\frac{\text{Br}_2}{\text{Br}^-}=+1.09\text{V}$
$\text{E}^0_\frac{\text{Cl}_2}{\text{Cl}^-}=+1.36\text{V}$
✓

Answer

$\text{E}^0_\text{cell}=\text{E}^0_\frac{\text{Br}_2}{\text{Br}^-}-\text{E}^0_\frac{\text{Cl}_2}{\text{Cl}^-}$
$=1.09\text{V}-1.36$
$=-0.27\text{V}$
Since Eo cell is -ve, reaction will not take place.

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