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  • Which of the following metals does not form solid hydrogen carbonates?   Option: 1 Li and Na&nbsp

Which of the following metals does not form solid hydrogen carbonates? 

 

Option: 1

Li and Na 

 


Option: 2

Na and K

 


Option: 3

Li and K 

 


Option: 4

Li and Mg 


Answers (1)

best_answer

All alkali metals form solid hydrogen carbonates except \mathrm{Li}. This is because \mathrm{Li}^{+}cation has highest hydration enthalpy. Thus, Li salts are heavily hydrated and have high hydration energy. So, they do not exist in solid state.

Also, Li and Mg have diagonal relationship due to their similar size and they have some similar properties. Thus, both Li and Mg does not form solid hydrogen carbonates. 

 

Posted by

Kuldeep Maurya

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