The concentration of a sample of acidified aqueous H 2 O 2 can be estimated by titrating…
Chemistry · JEE Main · NTA Exams — Redox Reactions and Electrochemistry
The concentration of a sample of acidified aqueous H2O2 can be estimated by titrating against a standard solution of KMnO4 added from a burette. Under these conditions, H2O2 is oxidized to O2.
Which of the following statements is/are correct?
- The end-point is when the colour changes from colourless to purple.
- Dilute H2SO4 is a suitable acid for use in this titration.
- Each mole of H2O2 accepts one mole of electrons.
- [Mn(H2O)6]2+ and Cr2+ is formed in the reaction.
Answer
(B) Dilute H 2 SO 4 is a suitable acid for use in this titration.
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