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10. The s - Block Elements
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Q13 of 39 Page 305

Potassium carbonate cannot be prepared by Solvay process. Why?

Potassium carbonate is not precipitated when CO2 is passed through conc. Solution of KCl saturated with ammonia. Thus, potassium carbonate cant be prepared by Solvay’s process.


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11

Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?

12

Discuss the various reactions that occur in the Solvay process.

14

Why is Li2CO3 decomposed at a lower temperature whereas Na2CO3 at higher temperature?

15

Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the alkaline earth metals. (a) Nitrates (b) Carbonates (c) Sulphates.

Questions · 39
10. The s - Block Elements
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