Question

which of the following changes is not oxidation.. A.combination. B.double displacement. C.corrosion. D.rancidity​

Answer 1

A Combination is the reaction

Answer 2

B.double displacement changes is not oxidation.

Definition and examples of double displacement reaction:

• Double displacement reactions are those in which two compounds react by exchanging ions to generate two new molecules.
• These are not redox reactions since the oxidation states of the elements do not change.

• A twofold displacement reaction is a chemical process in which reactant ions switch positions to generate new products. Precipitate is often formed as a result of a twofold displacement process.
• Covalent or ionic chemical bonds can exist between the reactants.
• A twofold displacement reaction occurs when silver nitrate and sodium chloride react. The silver exchanges its nitrite ion for the chloride ion of sodium, leading the sodium to pick up the nitrate anion.

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