Assertion: Ionic bonds are always stronger than covalent bonds.
Reason: They break only when bombarded with electrons.

Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

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Both Assertion and Reason are correct and Reason is not the correct explanation of Assertion.

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Assertion is correct but Reason is not correct.

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Assertion is not correct but Reason is correct.

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Both the Assertion and Reason are not correct.

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Solution

The correct option is E
Both the Assertion and Reason are not correct.

Assertion: Some ionic bonds are stronger than some covalent bonds and some covalent bonds are stronger than some ionic bonds and there is no pure ionic bond (each ionic bond has some covalent character) and the only pure covalent bonds are those between two atoms of the same element in molecules of elementary substances.
Reason: Bond breaking occur due to the collisions of the molecules to cause bond breaking as well as new bond formation.
Hence, both assertion and reason are not correct.

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Assertion: Ionic bonds are always stronger than covalent bonds.Reason: They break only when bombarded with electrons.

Assertion: Ionic bonds are always stronger than covalent bonds.
Reason: They break only when bombarded with electrons.