Redox Titrations
Chemistry ⇒ Redox Reactions and Electrochemistry
Redox Titrations starts at 11 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Redox Titrations.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A redox titration is performed to determine the concentration of hydrogen peroxide using KMnO4. Write the balanced equation for the reaction in acidic medium.
Describe the difference between iodometric and iodimetric titrations.
Describe the function of a redox indicator.
Explain why potassium dichromate is not used as a self-indicator in redox titrations.
Explain why potassium permanganate acts as its own indicator in redox titrations.
Explain why sodium thiosulfate solutions should be standardized before use in titrations.
Explain why the solution must be acidic during the titration of Fe2+ with KMnO4.
In the titration of oxalic acid with KMnO4, the reaction mixture must be heated. State the reason.
Which indicator is commonly used in the titration of iodine with sodium thiosulfate?
(1) Methyl orange
(2) Starch
(3) Phenolphthalein
(4) Methyl red
Which of the following is a correct statement about the use of external indicators in redox titrations?
(1) They are always required
(2) They are used when the titrant is not self-indicating
(3) They are only used in acid-base titrations
(4) They are never used in redox titrations
Which of the following is a disadvantage of using KMnO4 as a titrant?
(1) It is not a primary standard
(2) It is colorless
(3) It is unstable in acidic medium
(4) It requires an external indicator
Which of the following is a primary standard substance for redox titrations?
(1) Potassium dichromate
(2) Potassium permanganate
(3) Sodium thiosulfate
(4) Ferrous ammonium sulfate
During a redox titration, the titrant is always the solution of _______ concentration.
In a redox titration, the analyte is the solution of _______ concentration.
In a redox titration, the titrant is added from a _______.
In a redox titration, the titration curve plots the change in _______ potential against the volume of titrant added.
True or False: In a redox titration, the equivalence point is reached when the number of moles of electrons lost equals the number of moles of electrons gained.
True or False: In iodometric titrations, sodium thiosulfate is used as a reducing agent.
True or False: Potassium dichromate is a self-indicator in redox titrations.
True or False: The endpoint and equivalence point in a redox titration always coincide exactly.
