Chemistry · Preparation, properties and uses of K2Cr2O7 and KMnO4
is acidified for redox titrations by:
\( K M n O_{4} \) is acidified for redox titrations by:
- A. \( H C l \)
- B. \( H N O_{3} \)
- C. \( H_{2} S O_{4} \)
- D. any of these
Step-by-step solution
In redox titrations, KMnO4 requires an acidic medium. HCl is not suitable because it gets oxidized to Cl2 by KMnO4. HNO3 is also an oxidizing agent and can interfere. Dilute H2SO4 is used as it does not react with KMnO4, providing the necessary acidic conditions without interfering.
Related MCQs
- In the dichromate anion…
- solution turns from yellow to another color upon addition of acid. What is the another color?…
- Which represents correct comparison of the stability of ions?…
- Assertion NaBO can be used for oxidation of to Reason In alkaline medium produces…
- In the purification of zirconium by Van Arkel process which halogen is used?…