Chemistry · Preparation, properties and uses of K2Cr2O7 and KMnO4
solution turns from yellow to another color upon addition of acid. What is the a
\( A C r O_{4}^{2-} \) solution turns from yellow to another color upon addition of acid. What is the another color?
- A. Pink
- B. Green
- C. white
- D. orange
Step-by-step solution
The chromate ion (CrO4^2-) is yellow in basic/neutral solution. Upon addition of acid, it converts to dichromate ion (Cr2O7^2-), which is orange in color.
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