Assertion : $A l {C l}_{3}$ is called aluminum trichloride.
Reason: Prefixes are used when naming covalent compounds.

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

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
$A l C l_{3}$ is called aluminium chloride. When covalent compounds are named then prefixes are not used necessarily.

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