MCQ
Correct statement(s) is/are
- Aan acidified solution of $K_2Cr_2O_7$ liberates iodine from $KI$
- B$K_2Cr_2O_7$ is used as a standard solution for estimation of $Fe^{2+}$ ions
- Cin acidic medium, $M = N/6$ for $K_2Cr_2O_7$
- ✓All of the above
✓
Answer
Correct option: D.
All of the above
d
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