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The decreasing order of the second ioniz...

The decreasing order of the second ionization potentials of `K, Ca` and `Ba` is

A

`K gt Ca gt Ba`

B

`Ca gt Ba gt K`

C

`Ba gt K gt Ca`

D

`K gt Ba gt Ca`

Text Solution

Verified by Experts

The correct Answer is:
A
`K^(+) gt Ca^(+) gt Ba^(+)`
(IE decrases down the group )
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A2Z-S BLOCK ELEMENTS ( GROUP 13 - 14)-Section D - Chapter End Test
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  2. Plaster of Paris hardens by

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  3. The mixture of MgCl(2) and MgO is called .

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  4. Which monoxide of alkali metals is slowly hydrolysed ?

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  5. Which of the following has lowest thermal stability ?

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  6. Solution of K(2)O in water in basic, because it contains a significant...

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  7. The order of melting point of chloirdes of alkali metals is :

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  8. Sodium carbonate reacts with SO(2) in aqueous medium to give

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  9. Sodium dichormate on heating with coke yields :

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  10. Which one out of the NaOH and KOH is a better absorber of CO(2) ?

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  11. Reduction of sodium nitrite by sodium metal yields:

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  12. Which of the following statement is incorrect ?

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  13. What products are formed during the electrolysis of a of a concentrat...

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  14. Na+Al(2)O(3) overset("High temp.") rarrXoverset(CO(2)" in")underset("w...

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  15. What happens when a mixture of sodium sulphate, lime stone and coke is...

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  16. The order of basicity of hydroxides of alkali metals is

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  17. What happens when sodium metal is heated to a temperature 350^(@)C in ...

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  18. Solubility of an ionic compound in water is mainly dependent on: a...

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  19. Na(2)Be(OH)(4)] is formed when

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  20. What is the formula of basic anhydride of Ba(OH)(2)?

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  21. What is the correct order of thermal stability of carbonates of alkali...

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