Question detail

What is produced at the cathode during the electrolysis of an aqueous solution if the metal is more reactive than hydrogen?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Electrolysis

Question

Hydrogen gas

When the metal is more reactive than hydrogen, hydrogen ions gain electrons at the cathode to form hydrogen gas.

Hydrogen Production Prediction Error

Students often incorrectly predict that hydrogen is produced at the cathode regardless of the metal's reactivity.

Remind students to compare the reactivity of the metal with hydrogen; hydrogen is produced only if the metal is more reactive than hydrogen.

Flashcard 1 of 5

Press Space to flip, arrows to move