Chemistry Regents Practice Test 2025 – The All-in-One Guide to Exam Success!

Question: 1 / 400

What happens to the oxidation state of an element during oxidation?

It decreases

It remains the same

It increases

During oxidation, the oxidation state of an element increases. Oxidation involves the loss of electrons by an atom or ion, which results in a rise in its oxidation state. When an element loses electrons, it often undergoes a transformation where it becomes more positively charged or less negatively charged, leading to an increase in its oxidation state.

This concept is integral to understanding redox (reduction-oxidation) reactions. In these reactions, one species is oxidized (losing electrons and increasing its oxidation state) while another is reduced (gaining electrons and decreasing its oxidation state). Recognizing that oxidation entails an increase in oxidation state is key to mastering various chemical reactions and processes.

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It becomes zero

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