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Which one of the alkaline earth metal ca...

Which one of the alkaline earth metal carbonates is thermally the most stable?

A

`MgCO_3`

B

`CaCO_3`

C

`SrCO_3`

D

`BaCO_3`

Text Solution

Verified by Experts

The correct Answer is:
D
(d) As the electropositive character of alkaline earth metals increases down the group , their thermal stability increases. Hence `BaCO_3` is the most stable.
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -NCERT FILE ( NCERT Textbook Exercises)
  1. Potassium carbonate can be obtained by Solvay's process.

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  2. Why is Li(2)CO(3) decomposed at a lower temperature whereas Na(2)CO(3)...

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  3. Compare the solubility and thermal stability of the following compound...

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  4. Starting from sodium chloride, how will you proceed to prepare (i) sod...

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  5. What happens when (a) magensium in burnt in air, (b) quicklime is heat...

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  6. Describe two important uses of each of the following: (a) casutic so...

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  7. Draw the structure of (i) BeCl2 (vapour) and (ii) BeCl2 (solid).

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  8. The hydroxides and carbonates of sodium and potassium are easily solub...

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  9. Describe the importance of the following: (a) limestone, (b) cement an...

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  10. Why are lithium salts commonly hydrated while those of other alkali me...

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  11. Why it LiF almost insoluble in water while LiCl is soluble not only in...

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  12. Explain the significance of sodium, potassium, magnesium and calcium o...

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  13. What happens when a. Sodium metal is dropped in water? b. Sodium m...

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  14. Comment on each of the following observation: a. The mobilities of t...

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  15. State as to why (a) a solution of Na(2)CO(3) is alkaline ? (b) alk...

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  16. Write balanced quations for reaction between (a) Na2O2 and water (...

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  17. How would you explain the following observations? (i) BeO is almost ...

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  18. .Which of the alkali metal is having least melting point?

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  19. Which one of the following alkali metals gives hydrated salts ?

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  20. Which one of the alkaline earth metal carbonates is thermally the most...

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