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In which of the following arrangements t...

In which of the following arrangements the order is NOT according to the property indicated against it ?

A

`Al^(3+) lt Mg^(2+) lt Na lt F^(-)` - increasing ionic size

B

`B lt C lt N lt O` -increasing first ionization enthalpy

C

`I lt Br lt F lt Cl` - increasing electron gain enthalpy (with negative sign)

D

`Li lt Na lt K lt Rb` – increasing metallic radius

Text Solution

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The correct Answer is:
B
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MOTION-PERIODIC TABLE -Exercise - 4 | Level-I
  1. Among Al(2)O(3),SiO(2),P(2)O(5) and SO(3) the correct order of acid st...

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  2. The formation of the oxide ion O((g))^(2-) requires first an exothermi...

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  3. In which of the following arrangements the order is NOT according to t...

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  4. Which of the following oxides is amphoteric in character ?

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  5. Pick out the isoelectronic structures from the following (i) CH(3)^(...

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  6. The lanthanide contraction is responsible for the fact that

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  7. Which of the following factors may be regarded as the main cause the l...

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  8. The increasing order of the first ionization enthalpies of the element...

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  9. Which one of the following sets of ions represents a collection of iso...

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  10. Lanthanide contraction is caused due to -

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  11. Which one of the following constitutes a group of the isoelectronic sp...

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  12. In which of the following arrangements, the sequence is not strictly a...

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  13. The correct sequence which shows decreasing order of the ionic radii o...

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  14. Which one of the following order represents the correct sequence of th...

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  15. Outer electronic configuration of Gd (atomic no: 64) is-

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  16. The increasing order of the ionic radii of the given isoelectronic spe...

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  17. The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:

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  18. Which of the following represent the correct order of increasing first...

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  19. The first ionisation potential of Na is 5.1eV. The value of eectrons g...

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  20. The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:

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