Multiple Choice
In a redox reaction, when oxygen acts as the electron acceptor, which compound is commonly produced as a byproduct?
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6. Chemical Quantities & Aqueous Reactions
Redox Reactions
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
If a compound is reduced in a redox reaction, what happens to it?
A
It loses electrons.
B
Its oxidation state increases.
C
It gains electrons.
D
It releases energy.
Verified step by step guidance1
Understand the concept of reduction in redox reactions: Reduction refers to the gain of electrons by a substance.
Recall that oxidation and reduction always occur together; when one species gains electrons (is reduced), another loses electrons (is oxidized).
Recognize that gaining electrons causes the oxidation state of the compound to decrease, not increase.
Note that losing electrons corresponds to oxidation, so the statement 'It loses electrons' is incorrect for reduction.
Conclude that the correct description of reduction is that the compound gains electrons.
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