Chemistry · d- and f-Block Elements
During a qualitative analysis lab session, a student added a yellow-colored potassium chromate solution into a test tube. The color of the solution immediately changed to orange. Realizing the test tube was contaminated with a few drops of a leftover liquid, which of the following substances is the most likely contaminant causing this color change?
- 1HCl solution✓
- 2Sodium hydroxide solution
- 3Methyl orange solution
- 4Sodium hydrogen carbonate solution
Correct answer
HCl solution
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