Question

Potassium is more reactive than calcium. Explain.

Solution

Reactivity of an element depends on upon the ionisation enthalpy. Smaller the ionisation enthalpy, greater is the reactivity. As potassium has smaller ionisation enthalpy than calcium. Thus, potassium is more reactive than calcium.

Some More Questions From The s-Block Elements Chapter

Which is the most reactive alkali metal and why?

Why alkali metals do not form M²⁺ions?

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The S-Block Elements

Potassium is more reactive than calcium. Explain.

Some More Questions From The s-Block Elements Chapter

Which is the most reactive alkali metal and why?

Why alkali metals do not form M²⁺ions?

Name the radio active element in group 1. How does it resemble with the remaining elements of the group?

Why alkali metals are normally kept in kerosene oil?

Why lithium cannot be stored in kerosene?

Why does lithium form complexes?

Why are alkali metal ions diamagnetic and colourless?

Why are alkali metals the most electropositive in nature?

Explain why is sodium less reactive than potassium.

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NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

The S-Block Elements

Potassium is more reactive than calcium. Explain.

Some More Questions From The s-Block Elements Chapter

Which is the most reactive alkali metal and why?

Why alkali metals do not form M2+ ions?

Name the radio active element in group 1. How does it resemble with the remaining elements of the group?

Why alkali metals are normally kept in kerosene oil?

Why lithium cannot be stored in kerosene?

Why does lithium form complexes?

Why are alkali metal ions diamagnetic and colourless?

Why are alkali metals the most electropositive in nature?

Explain why is sodium less reactive than potassium.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Why alkali metals do not form M²⁺ions?