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Which of the following order is wrong?...

Which of the following order is wrong?

A

`NH_3 lt PH_3 lt AsH_3 - "Acidic"`

B

`Li lt Be lt B lt C " -IE"_1`

C

`Al_2 O_3 lt MgO lt Na_2 O lt K_2 O`- Basic nature

D

`Li^+ lt Na^+ lt K^+ lt Cs^+` - Ionic radius

Text Solution

Verified by Experts

The correct Answer is:
B
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VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS-IMPECCABLE
  1. Which of the following order is wrong?

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  2. The first ionisation potential (in eV ) of Be and B, respactively are

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  3. In the following, the element with the highest electropositivity is

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  4. Elements with outer electron configuration ns2 np6 are:

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  5. In the periodic table, the element with atomic number 16 will be place...

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  6. On going from right to left in a period in the periodic table the elec...

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  7. A sudden large jump between the value of second and third ionization e...

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  8. Which of the following statement is true about the elements of IA and ...

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  9. Which pair show less similarity in their properties than the other thr...

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  10. Number of s-block elements are:

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  11. Which of the following is most electronegative ?

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  12. Ionic radii of

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  13. In the modern periodic table, the place of the element with atomic num...

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  14. Which one of the following is an s-block element?

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  15. Which of the following metals exhibits more than one oxidation state ?

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  16. Which of the following ions has the smallest size?

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  17. The word alkali is used for alkali metals indicates:

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  18. Among LiCl, RbCl, BeCl2, MgCl2, the compounds with greatest and least ...

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  19. Maximum covalent character is associated with the compound:

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  20. Arrange F,Cl,O,N in the decreasing order of electronegativy

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  21. Which one of the following does not exhibit variable oxidation states?

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