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When two or more reactants combine to form a single product, which type of reaction is it?

Answer and explanation

Correct answer: Combination reaction

A combination reaction is identified by the pattern A + B → AB: two or more reactants join to form one product. For example, 2Mg + O₂ → 2MgO shows magnesium and oxygen forming magnesium oxide. Thus option A is correct. Decomposition has one reactant and several products, whereas displacement and double displacement involve replacement or exchange rather than simple formation of one product.

Related tags

ScienceClass-10Chemical-ReactionsCombination-ReactionChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourClass 10 Mcq

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