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Which of the following has lowest therma...

Which of the following has lowest thermal stability ?

A

`Li_(2)CO_(3)`

B

`Na_(2)CO_(3)`

C

`K_(2)CO_(3)`

D

`Rb_(2)CO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Thermal stability of alkali metal oxy-acid salts increases with increasing metallic character so `Li_(2)CO_(3)` has lowest stability.
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A2Z-S BLOCK ELEMENTS ( GROUP 13 - 14)-Section D - Chapter End Test
  1. The mixture of MgCl(2) and MgO is called .

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  2. Which monoxide of alkali metals is slowly hydrolysed ?

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  3. Which of the following has lowest thermal stability ?

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

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

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

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  7. Sodium dichormate on heating with coke yields :

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

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  9. Reduction of sodium nitrite by sodium metal yields:

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  10. Which of the following statement is incorrect ?

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

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

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

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

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

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

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

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

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

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  20. Beryllium has less negative value of reduction potentials compared to ...

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