Redox, multiple choice (Redox-20) Answer the following questions with yes or no. Yes means that the whole question (i.e. any subsequent paragraphs) is correct. The following table is based on: Li → Li+ E= -3.05 V K → K+ E = -2.93 V … 2·F– → F2 E = +2.87 V Reducing agents are in the redox table on the left. Oxidizing agent standing in the redux table on the right. The higher up the redox table an oxidizing agent (right) is, the stronger it is. In an oxidation, electrons are emitted from the oxidizing agent. All metals can rust. A substance oxidizes when it… It emits protons. It's picking up protons. It emits electrons. It's picking up electrons. Oxidation always takes place at the anode. A strong oxidizing agent has a low tendency to absorb electrons. A strong oxidizing agent has a high tendency to reduce itself.

  Exercise: Redox-20    

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Answer the following questions with yes or no. Yes means that the whole question (i.e. any subsequent paragraphs) is correct.
The following table is based on:
      Li → Li⁺       E= -3.05 V
      K → K⁺       E = -2.93 V
…
      2·F^– → F₂       E = +2.87 V

1. Reducing agents are in the redox table on the left.
2. Oxidizing agent standing in the redux table on the right.
3. The higher up the redox table an oxidizing agent (right) is, the stronger it is.
4. In an oxidation, electrons are emitted from the oxidizing agent.
5. All metals can rust.
6. A substance oxidizes when it…
       It emits protons.
       It's picking up protons.
       It emits electrons.
       It's picking up electrons.
7. Oxidation always takes place at the anode.
8. A strong oxidizing agent has a low tendency to absorb electrons.
9. A strong oxidizing agent has a high tendency to reduce itself.

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Solution:

1. That 's right .
2. That 's right .
3. Wrong, the lower right, the stronger the oxidizing agent.
4. Wrong, correct would be: reducing agent releases electrons
5. Wrong. correct would be: rust is a special form of corrosion of iron or steel.
       All metals can be oxidized, but not all can rust.
6. Correct would be: A substance is oxidized when it emits electrons.
7. By definition, the anode is the place of oxidation. The holds always, independently of which:, whether or not it itself to galvanic cells or a electrolysis acting.
8. Correct would be: … has a high tendency to absorb electrons
9. That's right.

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