Question

For highly reactive metals like alkali and alkaline earth metals, only way of reduction is

Answer 1

Like the alkali metals, the alkaline earth metals are so reactive that they are never found in elemental form in nature. Because they form +2 ions that have very negative reduction potentials, large amounts of energy are needed to isolate them from their ores.

Answer 2

Answer:

(1) The alkali metals and alkaline earth metals are very reactive due to their low ionisation enthalpy. As a result they are always found in combined state.

(2) Alkali metals due to their large atomic raii and low ionisation enthalpy form univalent positiveions M^+ easily. Therefore, they are more reactive than alkaline earth metals.

(3) Alkaline earth metals form bivalent positive ions M^2^+ The reactivity of these metal, increases down the group as the ionisation enthalpy decreases in a group