Examine the activity series given below. Which of the following elements would be the least likely to release hydrogen gas (H₂) upon reaction with water or acid? A) Ag B) Ni C) Al D) Mg

Question

Quizplus · Accepted Answer

The activity series lists elements in order of their tendency to undergo oxidation (i.e. lose electrons) in reactions. The higher an element is on the activity series, the more likely it is to lose electrons and undergo oxidation. Conversely, the lower an element is on the activity series, the less likely it is to undergo oxidation. Hydrogen gas is produced when a metal higher on the activity series reacts with an acid or water. Therefore, the least likely element to release hydrogen gas would be the one lowest on the activity series, which is Ag (silver).

Examine the Activity Series Given Below