What are the causes for which lithium shows some anomalous properties from the other elements in the group I.

What are root hairs? Which region of the root do they arise from? What is their function?

Do the element lithium, sodium and potassium from a Dobereiner's triad?

Define the term 'osmosis' and 'osmotic pressure'. What is the advantage of using osmotic pressure as compared to other colligative properties for the determination of molar masses of solute in solution.

What is an element? Which of the following are elements?