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The d & f Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements3 Marks
Question
Complete the following chemical reaction equations:
$\text{Cr}_2\text{O}^{2-}_7(\text{aq})+\text{Fe}^{2+}(\text{aq})+\text{H}^+(\text{aq})\xrightarrow{\ \ \ \ \ \ \ \ \ }$
✓

Answer

$\ \ \ \ \ \ \ \ \ \ \ \ \ \text{Cr}_2\text{O}^2_7+14\text{H}^+6\text{e}^-\xrightarrow{\ \ \ \ \ \ }2\text{Cr}^{3+}+7\text{H}_2\text{O}\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Fe}^{2+}\xrightarrow{\ \ \ \ \ \ \ }\text{Fe}^{3+}+\text{e}^-\times6\\\underline{\overline{\text{Cr}_2\text{O}^{2-}_7+6\text{Fe}^{2+}+14\text{H}^+\xrightarrow{\ \ \ \ \ \ }2\text{Cr}^{3+}+6\text{Fe}^{3+}+7\text{H}_2\text{O}}}$

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