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Lewis Kossel Structure

Assertion : ...

Question

Assertion : $F$ atom has less electron than $C l$ atom. Reason: Additional electrons are repelled more effectively by 3p electrons in $C l$ atom than by 2p electron in F atom.

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
Fluorine has atomic number 9 so it has 9 electron, while chlorine has atomic number of 17. Therefore, $C l$ has 17 electron.
Additional electrons are repelled less effectively by 3p electrons in Cl atom than by 2p electron in F atom.

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