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 Assertion: Group 18 elements have low electronegativity.

Reason: Group 18 elements have a complete outermost shell of electrons.

 

Option: 1

Both assertion and reason are true, and the reason is the correct explanation of the assertion.

 


Option: 2

Both assertion and reason are true, but the reason is not the correct explanation of the assertion.


Option: 3

The assertion is true, but the reason is false.


Option: 4

The assertion is false, but the reason is true.


Answers (1)

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The correct answer is (A) Both assertion and reason are true and reason is the correct explanation of the assertion. Group 18 elements have low electronegativity because they have a complete outermost shell of electrons, making them stable and less likely to attract electrons.  Hence option A is the correct answer.

Option (B) is incorrect because it incorrectly states that the assertion is correct but the reason is incorrect. Both the assertion and reason are correct. Hence option B is incorrect.

Option (C) is incorrect because it incorrectly states that the assertion is incorrect but the reason is correct. The assertion is correct, and the reason is also correct. Hence option C is incorrect.

Option (D) is incorrect because it incorrectly states that both the assertion and reason are incorrect. Both the assertion and reason are correct. Hence option D is incorrect.

 

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Riya

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