alleryStart learning →How is a combustion reaction described?
AA precipitation reaction that gives off light
BAn acid-base reaction that produces a salt
CA vigorous redox reaction releasing much heat
DA reaction in which no oxidation state alters
Answer & Solution
Correct answer: C. A vigorous redox reaction releasing much heat
1. Combustion is one of the recognised subclasses of redox reactions.
2. A fuel acts as the reductant and an oxidant, often oxygen, takes the electrons.
3. The reaction is vigorous and gives out large amounts of heat, often with light as a flame.
4. Solid rocket-fuel reactions are combustion processes of this kind.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 4 "Stoichiometry of Chemical Reactions", section 4.2 Classifying Chemical Reactions_
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