CBSE 2025 · Region 5 · Set 1 · Q12 · 1 mark
While doing qualitative analysis in chemistry lab, Abhishek added yellow coloured potassium chromate solution into a test tube. He was surprised to see the colour of the solution changing immediately to orange. He realised that the test tube was not clean and contained a few drops of some liquid. Which of the following substances will be the most likely liquid to be present in the test tube before adding potassium chromate solution?
Official answer
From CBSE’s own marking scheme for this paper.
(D)
HCl solution
Haloalkanes and HaloarenesChemical Reactions of Haloalkanes and HaloarenesAnalysemcqmedium
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.