Which ion will have the maximum value of heat of hydration?
Correct answer: D. Mg+2
- A. Na+
- B. Cs+
- C. Ba+2
- D. Mg+2
Explanation
Mg²⁺, also has a double positive charge like Ba²⁺, but magnesium ions are smaller in size compared to barium ions. The smaller size of magnesium ions leads to a higher charge density, resulting in a stronger attraction to water molecules and a higher heat of hydration compared to options 1, 2, and 3. Therefore, option 4, Mg²⁺, would have the maximum value of heat of hydration.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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