question_answer 72)

  All compounds of alkali metals are easily soluble in water but lithium compounds are more soluble in organic solvents. Explain.

Answer:

  The size of \[L{{i}^{+}}\] ion is small and thus, it has high polarising power. This brings covalent character in lithium compounds. For example, \[LiCl\]is more covalent in comparison to other halides of alkali metals. Due to covalent character, lithium compounds are soluble in organic solvents.