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Applications of Colloids

The property ...

Question

The property of ion which depends on charge density

A

Lattice energy

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B

Bond energy

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C

Dipole moment

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D

Degree of hydration

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Solution

The correct option is D Degree of hydration
smaller the ion and higher the charge, higher will be the charge density and hence higher Is the degree of hydration.

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Q. Lattice energy and hydration energy are two important properties of ionic solids on which their melting point, boiling point and solubility depend. Lattice energy increases as the charge on the ion increases and the size decreases. Hydration energy increases as the size of the ion decreases and charges on it increases.
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Q. Why does hydration bond strength depends on atomic size?

The electronegativity of halogens decreases from fluorine to iodine while the electron affinity has the trend

C l > F > B r > I

. The halogens are good oxidizers The oxidizing power of halogens in aqueous medium depends on their electron affinity, bond dissociation energy and heat of hydration. Basic character of their anions depends on their size and electronegativity. Similarly, the ionic character of the salts of different halides of the same metal depends on their electronegativity and size.

The heat of hydration and the basic character of halide ions follow the order:

Q. Which property of colloids is not dependent on the charge on colloidal particles ?

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