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An orange solution of potassium dichromate turns yellow… | StemPy Lab
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An orange solution of potassium dichromate turns yellow when alkali is added. What happens to the chromium?
Chemistry
Medium
High School (11–12)
The d- and f-Block Elements › Lanthanoids and Actinoids (f-Block)
NEET
A-Level
IB
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StemPy Lab
An orange solution of potassium dichromate turns yellow when alkali is added. What happens to the chromium?
Its oxidation state stays
+
6
+6
+
6
, and dichromate changes to chromate
It is reduced from
+
6
+6
+
6
to
+
3
+3
+
3
It is oxidised from
+
6
+6
+
6
to
+
7
+7
+
7
It is reduced from
+
6
+6
+
6
to
0
0
0
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