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Why are potassium and cesium, rather tha...

Why are potassium and cesium, rather than lithium used in photoelectric cells?

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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -SOLVED NCERT EXERCISE
  1. In what ways lithium shows similarities to magnesium in its chemical b...

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  2. Explain why can alkali and alkaline earth metals not be obtained by ch...

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  3. Why are potassium and cesium, rather than lithium used in photoelectri...

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  4. When an alkali metal dissolves in liquid ammonia the solution can acqu...

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  5. Beryllium and magnesium do not give colour to flame whereas other alka...

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  6. Discuss the various reactions that occur in the Solvay process.

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  7. Potassium carbonate cannot be prepared by Solvay process. Why?

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  8. Why is Li2CO3 decomposed at a lower temperature whereas Na2CO3 at high...

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  9. Compare the solubility and thermal stability of the given compounds of...

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  10. Compare the solubility and thermal stability of the given compounds of...

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  11. Compare the solubility and thermal stability of the given compounds of...

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  12. Starting with sodium chloride how would you proceed to prepare sodium ...

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  13. Starting with sodium chloride how would you proceed to prepare sodium ...

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  14. Starting with sodium chloride how would you proceed to prepare sodium ...

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  15. Starting with sodium chloride how would you proceed to prepare sodium ...

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  16. What happen when magnesium is burnt in air ?

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  17. What happen when quicklime is heated with silica ?

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  18. What happen when chlorine reacts with slaked lime ?

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  19. What happen when calcium nitrate is heated?

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  20. Describe two important uses of each of the following : caustic soda.

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