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

The IE of Be is greater than that of B.

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Assertion(A) : IE_(1) of C is greater than that of B . Reason (R ): Due to penetration effect the IE_(1) of C is greater than that of B

Assertion: The first ionisation energy of Be is greater than that of B . Reason: 2p-orbital is lower in energy than 2s-orbital.

Assertion: The first ionization energy of Be is greater than that of B. Reason: 2p-orbital is lowerr in energy than 2s-orbital.

Assertion: The first ionisation energy of Be is greater than that of B . Reason: 2p-orbital is lower in energy than 2s-orbital.

Assertion: The first ionization energy of Be is greater than that of B. Reason: 2p-orbital is lower in energy than 2s-orbital.

The IE of Be is "____" than that of B .

Assertion (A) : IE_(1) of Mg is greater than that of Al . Reason (R ) : It is easier to remove an electron fro 3s orbital than from 3p orbital.

The frequency of B is 3% greater than that of A . The frequency of C is 2% less than that of A . If B and C produce 8 beats//s , then the frequency of A is

2 g each of two solutes A and B (molar mass of A is greater than that of B ) are dissolved separately in 50 g each of the same solvent. Which will show greater elevation in the boiling point?

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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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