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Per NCERT §7.3.1, a COMBINATION reaction is classified as redox under which condition?
ABoth reactants are compounds
BNo condition needed
COne product is a salt
DAt least one reactant is an element
Answer & Solution
Correct answer: D. At least one reactant is an element
NCERT §7.3.1(1): A + B → C is redox if A or B (or both) is in elemental form (which has ox. no. 0).
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