Podcast
Questions and Answers
Why are permanganate solutions reasonably stable even though the equilibrium constant favors the products?
Why are permanganate solutions reasonably stable even though the equilibrium constant favors the products?
- The solutions are stored in light containers.
- The decomposition reaction is rapid.
- The solutions are highly reactive.
- The decomposition reaction is slow. (correct)
What catalyzes the decomposition of permanganate solutions?
What catalyzes the decomposition of permanganate solutions?
- Light (correct)
- Iron
- Oxygen
- Water
Which of the following is NOT a factor that catalyzes the decomposition of permanganate solutions?
Which of the following is NOT a factor that catalyzes the decomposition of permanganate solutions?
- Acids
- Heat
- Alkalis (correct)
- Manganese(II)
What makes permanganate solutions moderately stable?
What makes permanganate solutions moderately stable?
In what type of container should permanganate solutions be stored to maintain stability?
In what type of container should permanganate solutions be stored to maintain stability?
What is a key characteristic of permanganate solutions when properly prepared?
What is a key characteristic of permanganate solutions when properly prepared?
Which of the following is NOT a suitable auxiliary reducing agent for converting iron(III) to iron(II)?
Which of the following is NOT a suitable auxiliary reducing agent for converting iron(III) to iron(II)?
If a sample containing iron is dissolved, the resulting solution may contain a mixture of:
If a sample containing iron is dissolved, the resulting solution may contain a mixture of:
To determine the iron content using a standard oxidant, the sample solution needs to be pre-treated with:
To determine the iron content using a standard oxidant, the sample solution needs to be pre-treated with:
If planning to titrate with a standard reductant, the sample solution needs to be pre-treated with:
If planning to titrate with a standard reductant, the sample solution needs to be pre-treated with:
For an auxiliary reagent to be useful, it must:
For an auxiliary reagent to be useful, it must:
Which of the following metals, when added in the presence of chloride ion, can act as an auxiliary reducing agent?
Which of the following metals, when added in the presence of chloride ion, can act as an auxiliary reducing agent?
What is the purpose of introducing an excess of potassium iodide in the reaction with excess bromine?
What is the purpose of introducing an excess of potassium iodide in the reaction with excess bromine?
Which of the following is an example of an auxiliary reducing agent mentioned in the text?
Which of the following is an example of an auxiliary reducing agent mentioned in the text?
In the permanganate-oxalate titration, what is the role of the oxalate ion?
In the permanganate-oxalate titration, what is the role of the oxalate ion?
Which of the following is NOT a sample problem mentioned in the text?
Which of the following is NOT a sample problem mentioned in the text?
In the context of the text, what is the primary purpose of oxidizing agents?
In the context of the text, what is the primary purpose of oxidizing agents?
What is the significance of the reaction between excess bromine and potassium iodide mentioned in the text?
What is the significance of the reaction between excess bromine and potassium iodide mentioned in the text?
