Which of the following statements concerning the halides of alkaline earth metals are correct? — s Block Elements Chemistry Question

💡 Solution & Explanation

Beryllium halides are covalent due to Fajans' rule. In the vapor phase above 1200 K, the $BeCl_2$ dimer dissociates into a linear monomer. The tendency to form hydrates decreases down the group as hydration enthalpy drops. Statement B is incorrect; hydrated halides of Ca, Sr, Ba dehydrate upon heating, whereas hydrated halides of Be and Mg undergo hydrolysis to give oxides.