Assertion :An ionic solid is a good conductor of electricity. Reason: An ionic solid is composed of positive and negative ions joined together by electrostatic forces.

Assertion and reason both are correct statements and reason is correct explanation for assertion.

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Assertion and reason both are correct statements but reason is not correct explanation for assertion.

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Assertion is correct statement but reason is wrong statement.

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Assertion is wrong statement but reason is correct statement.

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Solution

The correct option is D Assertion is wrong statement but reason is correct statement.
Assertion is wrong. An ionic solid is not a good conductor of electricity. In an ionic solid, the ions are locked in a place. They stay in their place in the crystal lattice. They do not move much within the lattice and hence they cannot conduct electricity, as they lack charge carriers.

Ionic compounds conduct electricity in a molten or dissolved aqueous state.

Reason is correct. Ionic solids are made up of positive (cations) and negative (anions) ions. These ions are held together by the electrostatic force of attraction between them. And the bonding between them is known as ionic bonding.

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