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Paired reactions in which one molecule is oxidised while another is reduced are called:
ARedox reactions
BHydration reactions
CIsomerase reactions
DSubstitution reactions
Answer & Solution
Correct answer: A. Redox reactions
1. Removing an electron from a molecule oxidises it.
2. That electron does not stay unbonded; it shifts to a second compound, reducing it.
3. Because oxidation and reduction usually occur together, these pairs of reactions are called oxidation reduction reactions, or redox reactions.
4. A compound that reduces another is a reducing agent, and one that oxidises another is an oxidizing agent.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 7 'Cellular Respiration', sections 7.1-7.7_
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