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Ionic Bond

A number of i...

Question

A number of ionic compounds, e.g. $A g C l, C a F_{2}, B a S O_{4}$ are insoluble in water. This is because:

A

Water is not a good ionising solvent

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B

Ionic compounds do not dissolve in water

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C

Water has a high dielectric constant

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D

These molecules have exceptionally high attractive forces in their lattice.

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Solution

The correct option is D These molecules have exceptionally high attractive forces in their lattice.
Ionic compounds having lattice energy higher than hydration energy are insoluble in water.

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Similar questions

Q. A number of ionic compounds, e.g

A g C l, C a F_{2}, B a {S O}_{4}

are insoluble in water. This is because:

Q. Solubility of an ionic compound in water is mainly dependent on:
a. Lattice enthalpy
b. Hydration enthalpy
Both these factors oppose each other, and the resultant of these factors determines the solubility of an ionic compound in water. If the lattice enthalpy has a larger value, the compound is less soluble. If the hydration enthalpy has larger value, the compound is highly soluble in water.

B e F_{2}

is soluble in water while fluorides of other alkaline earth metals are insoluble because of:

Q. Solubility of an ionic compound in water is mainly dependent on:
a. Lattice enthalpy
b. Hydration enthalpy
Both these factors oppose each other, and the resultant of these factors determines the solubility of an ionic compound in water. If the lattice enthalpy has a larger value, the compound is less soluble. If the hydration enthalpy has larger value, the compound is highly soluble in water.

B e F_{2}

is soluble in water while fluorides of other alkaline earth metals are insoluble because of:

Q. With reference to ionic compounds, consider the following statements
(a) Ionic compounds are insoluble in alcohol.
(b) Ionic compounds in the solid state are good conductor of electricity.
Which of these statements is/are correct?

Q. Assertion :Ionic compounds have high melting points. Reason: Ionic compounds have strong electrostatic forces of attraction between the ions. Therefore, it requires a lot of energy to overcome these forces.

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