All of the following are oxidizing agents EXCEPT:
Correct answer: D. HI
- A. KMnO4
- B. K2Cr2O7
- C. H2SO4
- D. HI
Explanation
The correct answer is HI because it is a strong reducing agent, meaning it donates electrons to other substances rather than accepting them. This differs from oxidizing agents, which accept electrons. KMnO4, K2Cr2O7, and H2SO4 are all strong oxidizing agents, meaning they accept electrons and oxidize other substances, making them incorrect choices for this question.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electrochemistry
Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
Practise Electrochemistry
696 free Electrochemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrochemistry questions
Consider the following redox reaction:6FeSO4 + K2Cr2O7 + 7H2SO4 → 3Fe2(SO4)3 + Cr2(SO4)3 + K2SO4 + 7H2O.How many electrons are involved in the redox reaction?
Coinage metals (Cu, Ag and Au) are the least reactive because they have:
When a dilute solution of salt is electrolyzed, a colourless gas is given off at the anode. The gas is:
The potential set up when an electrode is in contact with 1M solution of its ions at 298 K is known as standard electrode potential (or standard reduction potential denoted by E°). All of the following statements about standard electrode potential are correct EXCEPT:
Identify incorrect statement about standard hydrogen electrode:
If in a Galvanic cell: The cell potential will be: