Which type of reaction involves the transfer of electrons?

Which type of reaction involves the transfer of electrons?

(1) alpha decay (2) double replacement

(3) neutralization (4) oxidation-reduction

Answer and Explanation:

Alpha decay is a type of nuclear reaction where the nucleus of parent atom breaks down and releases alpha particle( Helium atom) as well as a new atom.

In a double replacement reaction, two ionic compounds come together and switch their partners. Thus, they create two new ionic compounds.

In a neutralization reaction, an acid and base react together, or neutralize each other to create water and salt.

Finally, in oxidation-reduction reaction a transfer of electrons occurs. One element get oxidized (looses electrons, and another get reduced (gains electrons). Therefore, choice 4 is the correct answer.

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