The reactivity of metals is determined by their tendency to lose electrons and form positive ions. This is often represented by the activity series or reactivity series of metals. The general order of reactivity for the given metals is: Potassium (K) > Sodium (Na) > Calcium (Ca) > Iron (Fe). Potassium is an alkali metal and is highly reactive, reacting vigorously with water and air. Sodium is also an alkali metal, less reactive than Potassium but still very reactive. Calcium is an alkaline earth metal, less reactive than alkali metals. Iron is a transition metal and is considerably less reactive than Calcium, Sodium, and Potassium.
Which one of the following is the highest reactive metal ?
Asked in UKPSC CS Prelims 2024 · Topic: Metals, Minerals, Ores: Properties, Uses (Reactivity series of metals and its applications)
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