Tag: alkali metals

Questions Related to alkali metals

Select the correct statements :

chemistry group 2 physical properties of alkaline earth metals alkali metals properties of alkaline earth metals

  1. Solubility of alkali earth metal's oxide decreases down the group

  2. Solubility of alkaline earth metal's sulphide increases down the group

  3. Solubility of alkali metal's hydroxide increases down the group

  4. Solubility of alkali metal's fluorides increases down the group

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Correct Option: B,C,D

Select the correct order of density.

chemistry group 2 physical properties of alkaline earth metals alkali metals properties of alkaline earth metals

  1. Na > K

  2. Na < K

  3. Mg > Ca

  4. Mg < Ca

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Correct Option: A,C
Explanation:

The trend of density amongst alkali metals: $Li<K<Na<Rb<Cs$


The trend of density amongst alkaline earth metals: $Ca<Mg<Be<Sr<Ba<Ra$

Hence the correct choices are $Na>K$ and $Mg>Ca$