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Assertion: F atom has less negative elec...

Assertion: `F` atom has less negative electron gain enthaply than `Cl` atom.
Reason: Additional electrons are repelled more effectively by 3 p-electrons in `Cl` than by `2` p-electrons in `F` atom.

A

Statement- 1 is true. statement-2 is true and statement-2 is correct explanation for statement- 1.

B

Staterrent- 1 is true, statement-2 is true and statement-2 is NOT the 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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ALLEN-QUANTUM NUMBER & PERIODIC TABLE-J-ADVANCED EXERCISE
  1. The basic nature of hydroxides of group 13 (III-A) decreases progressi...

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  2. Moving from right to left in a periodic table, the atomic size is :

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  3. The increasing order of electronegativity in the following elements :

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  4. One element has atomic weight 39. Its electronic configuration is 1s^(...

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  5. The number of paired electrons in oxygen atom is :

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  6. The decreasing size of K^(+),Ca^(2+),Cl^(-) & S^(2-) follows the order...

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  7. The incorrect statement Among the following is A)The first ionisation...

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  8. Li^(+),Mg^(2+),K^(+),Al^(3+) (Arrange in increasing order of radii)

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  9. Which one of the following statement (s) is (are) correct?

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  10. The ground state electronic configuration of nitrogen atom can be repr...

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  11. The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)...

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  12. Assertion: F atom has less negative electron gain enthaply than Cl ato...

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  13. The correct order of radii is

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  14. The IE of Be is greater than that of B.

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  15. The set representing correct order of IP(1) is

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  16. The least stable ion among the following is

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  17. The maximum number of electrons that can have principal quantum number...

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  18. In an atom, the total number of electrons 'having quantum numbers' n =...

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  19. The correct order of atomic radii in group 13 elements is

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  20. The option (s) with only amphoteric oxides is (are)

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