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During the qualitative analysis of \( SO_{3}^{-2}\) using dilute H2SO4, SO2 gas evolved which turns K2Cr2O7 solution (acidified H2SO4)
During the qualitative analysis of \( SO_{3}^{-2}\) using dilute H2SO4, SO2 gas evolved which turns K2Cr2O7 solution (acidified H2SO4)
Updated On: Apr 2, 2024
- Green
- Black
- Blue
- Red
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The Correct Option is A
Solution and Explanation
The correct answer is (A) : Green
Orange colour of dichromate solution (K2Cr2O7) converts to green (Cr3+).
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