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On heating which of the following releas...

On heating which of the following release `CO_(2)` most easily ?

A

`MgCO_3`

B

`CaCO_3`

C

`K_2CO_3`

D

`Na_2CO_3`

Text Solution

Verified by Experts

The correct Answer is:
A
`MgCO_3 overset("heat")to MgO + CO_2`
Thermal stability follows the order :
`K_2CO_3 gt Na_2CO_3 gt CaCO_3 gt MgCO_3`
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -COMPETITION FILE ( MULTIPLE CHOICE QUESTION (B))
  1. The salt of an alkali metal gives yellow colour in the flame test. Als...

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  2. The function of "Sodium pump" is a biological process operating in eac...

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  3. On heating which of the following release CO(2) most easily ?

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  4. Which of the following statement is false?

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  5. In context with beryllium, which one of the following statements is in...

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  6. Ionic mobility of which of the following alkali metal ions is lowest w...

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  7. Which of the following oxides is most acidic in nature ?

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  8. Among CaH(2),BeH(2),BaH(2), the order of ionic character is

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  9. Which of the following is an amphoteric hydroxide

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  10. Which of the following is an amphoteric hydroxide

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  11. Based on lattice energy and other considerations which one of the foll...

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  12. The ionic mobility of alkali metal ions in aqueous solution is maximum...

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  13. Which of the following is formed by the action of water on sodium pero...

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  14. Which one of the following processes is used for the manufacturing of ...

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  15. RbO2 is

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  16. Which pair of the following chlorides does not impart color to the fla...

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  17. Which of the following oxides is most acidic in nature ?

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  18. The molecular formula of gypsum is

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  19. Which one of the following metals has the largest abundance in the ear...

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  20. The metal that produces red violet colour in the non - luminous flame ...

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