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The correct order of decreasing ionic ch...

The correct order of decreasing ionic character is

A

`BaCl_(2) gt CaCl_(2) gt MgCl_(2) gt BeCl_(2)`

B

`BaCl_(2) gt MgCl_(2) gt CaCl_(2) gt BeCl_(2)`

C

`BeCl_(2) gt MgCl_(2) gt CaCl_(2) gt BaCl_(2)`

D

`BaCl_(2) gt BeCl_(2) gt CaCl_(2) gt MgCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Apply Fajans's rule, charge on the cation is same and tha anion is common in all the compounds, so the size of cation will decide the ionic character or the ionic character down group `2`, increases. So, the order is as given in (a).
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CENGAGE CHEMISTRY ENGLISH-PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY-Ex 1.2(Objective)
  1. The correct order of hydration enthalpies of alkali metal ions is:

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  2. Inert pair effect is shown by

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  3. Which is//are ampoteric oxide ?

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  4. EA is positive when

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  5. Which has the maximum covalent character?

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  6. In which solvent KBr has maximum solubility?

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  7. Lattice energy of BeCO(3)(I), MgCO(3)(II) and CaCO(3)(III) is in order...

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  8. NO(2) and N(2)O(4) are two forms of nitrogen dioxide. One exists in ga...

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  9. Magnetic moment of V(Z = 23),Cr(Z = 24),and Mn(Z= 25) are x,y,z res...

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  10. Solubility of groups 1 and 2 fluorides increases down the group'. Whic...

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  11. Which of the following molecule is theoretically not possible ?

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  12. Which of the following triads have approximately equal size ?

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  13. Which pair is different from the others ?

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  14. Compound XY is predominantly ionic as X^(o+)Y^(ɵ) if

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  15. (X), (Y), (Z) are elements in third short period. Oxide of (X) is ioni...

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  16. Which of the correct order of size ? (O^(ɵ), O^(2-), F^(ɵ) and F ?)

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  17. F has the highest electronegativity among the group 17 elements (i.e. ...

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  18. The correct order of decreasing ionic character is

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  19. The correct order of decreasing polarisability of ion is

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  20. Which of the following has the smallest bond length ?

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