A substance which does not appear in balanced chemical reaction is called:
Correct answer: C. Reaction intermediate
- A. Buffer
- B. Spectator ion
- C. Reaction intermediate
- D. None of these
Explanation
The correct answer is 'Reaction intermediate.' Reaction intermediates are transient species that appear in the steps of a reaction mechanism but do not appear in the overall balanced chemical equation. They are formed and consumed during the course of the reaction.Option A (Buffer) is incorrect because buffers relate to pH stability, not reaction mechanisms or equations. Option B (Spectator ion) is incorrect because spectator ions are present in the reaction equation but do not participate in the reaction. Option D (None of these) is incorrect because 'Reaction intermediate' is the correct term for the species described in the 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
Caustic soda is made by electrolysis of concentrated solution of NaCI in:
In oxidation number method the final step to balance equation is:
In Down's cell cathode is made up of:
Formation of ZnSO4 from blue copper sulphate solution is a spontaneous _.
In a galvanic cell, copper compartment get net negative charge due to arrival of:
Metals are_?