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Assertion: F is more electronegative tha...

Assertion: `F` is more electronegative than `Cl`.
Reason: `F` has high electron affinity than `Cl`.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

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

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
Chloirne has high electron affinity than fluorine. The less negative electron gain enthalpy of fluorine as compared to chlorine is due to very small size of the fluorine atom.
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A2Z-CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES-Section B - Assertion Reasoning
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  10. Assertion: Of the elements , helium has the highest value of first ion...

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  11. Assertion: The first ionisation enthalpy of aluminium is lower than th...

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  12. Assertion: Helium and beryllium have similar outer electronic configur...

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  13. Assertion: the 4f^(-) and 5f^(-) inner transition series of elements a...

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  14. Assertion: The atomic radii of the elements of the oxygen family are s...

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  15. Assertion: F atom has less negative electron gain enthaply than Ci ato...

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  16. Assertion: The first ionisation energy of Be is greater than that of B...

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  17. Assertion: In general, for an element, IE(1) lt IE(2) lt IE(3).... R...

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  18. Assertion: Generally, ionisation enthalpy than beryllium. Reason: Wh...

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  19. Assertion: Boron has a smaller first ionisation enthalpy than berylliu...

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