Carnallite does not contain

Write down the biological importance of $Na$ and $K$ in the human body and give a brief note on the sodium-potassium pump.

Identify the incorrect statement from the following.

Write the chemical reactions for the formation of oxides,peroxides,and superoxides of alkali metals.

Metals dissolve in liquid ammonia giving coloured solutions which are conducting in nature. The colour of the solution and reason of its conductance is

Which of the following is the most important factor in making lithium metal the strongest reducing agent?