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Assertion: Electron gain enthalpy value ...

Assertion: Electron gain enthalpy value of the 3rd peirod p-block elements of the mordern periodic table are generally more negative than the 2nd period element of the same group.
Reason: Due to smaller atomic size of the 2nd peirod element, its electron density is high which eases the addition of electron.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True

Text Solution

Verified by Experts

The correct Answer is:
C
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GRB PUBLICATION-PERIODIC TABLE-Reasoning Type
  1. Assertion: Electron gain enthalpy value of the 3rd peirod p-block elem...

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  2. Statement-1: 'He' has owest ionisation energy among all the elements. ...

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  3. Statement-1: In a period, noble gas has largest atomic radius. State...

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  4. Statement-1: The 5^(th) period of periodic table contains 18 elements ...

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

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  6. Statement-1: Manganese (atomic number 25) a less favourable electron a...

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

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  8. Statement-1: Second electron gain enthalpy of halogens is always posit...

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  9. Statement-1: Third ionisation energy of phosphorous is larger than sul...

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  10. Statement-1: First ionisation energy of O^(+)(g) is greater than that ...

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  11. Statement-1: Down the group, electronegativity decreases from B to TI....

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  12. Statement-1: Sc(Z = 21) is placed as d-block element. Statement-2: L...

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  13. Statement-1: Na^(+) and AI^(3+) are isoelectronic but the magnitude of...

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  14. Statement-1: The atomic radii of the elements of the oxygen family are...

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  15. Statement-1: Metallic character of first group metals increases down t...

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  16. Statement-1: Fluorine has a less negative electron gain enthalpy than ...

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  17. Statement-1: Fluorine forms only one oxoacid, HOF, Statement-2: Fluo...

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  18. Statement-1: Li and Mg shows diagonal relationship. Statement-2: Li...

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  19. Statement-1: The decreasing order of acidi character of CO(2),N(2)O(5)...

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  20. Statement-1: Oxidising property of F(2) is greater than Cl(2). State...

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