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

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
Question
Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with$:\ce{H_2S}$
✓

Answer

$\ce{H_2S: H_2S}$ is oxidised to sulphur.
$\text{Cr}_2\text{O}_7^{2-}+3\text{H}_2\text{S}+8\text{H}^+\rightarrow2\text{Cr}^{3+}+7\text{H}_2\text{O}+3\text{S}$

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