Electrolysis and Corrosion Quiz

Jackson, Sophia, and Harper are working on a science project about electrolytic cells. Based on their research, which of the following statements is true about an electrolytic cell?

• Oxidation occurs at the anode.

• Cathode is a negative electrode.

• Redox reaction occurs by consuming electricity.

• All of the above statements are true.

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NGSS.HS-PS2-5

Lily, Aria, and Liam were working on a science project. They decided to build a model of a bridge using iron. To prevent the iron from corroding, they coated it with a thin layer of zinc. This type of corrosion prevention is known as __

• Cathodic protection

• Anodic protection

• Sacrificial anode protection

• rusting

• 1.20 C

David, Scarlett, and Daniel are working on a project to prevent the corrosion of a pipe in their backyard. They learned that using a Sacrificial anode can help. Which of the following materials should they use as a sacrificial anode?

• Iron (Fe)

• Gold (Au)

• Copper (Cu)

• magnesium (Mg)

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Ava, Noah, and Henry are working on a school project to build a portable electronic device. They are discussing which type of battery to use. Which type of battery is commonly used in such devices?

• nickel-cadmium battery

• lithium-ion battery

• alkaline battery

• lead-acid battery

• 5567 C of charge is needed to produce 1g Cr.

• All of the above statements are true for their experiment.

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William, Daniel, and David are working on a science project where they have to identify the type of a cell shown in the figure. They found out it's a dry cell. Can you help them determine if it's a primary or a secondary cell?

• Secondary Cell

• Primary Cell

David, Aria, and Scarlett are working on a school project about automobiles. They learned that a Lead-Acid battery is used in most automobiles. Which of the following statements did they find to be true about this battery?

• This battery can be recharged.

• Sulfuric Acid (4 - 5 M) is used as an electrolyte.

• PbSO₄ (s) is the product of both oxidation and reduction reactions.

• There are six galvanic cells in a battery that produces a 12 V.

• All of the above statements are true.

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NGSS.HS-PS1-4

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