A Group 2 metal () forms a chloride that is highly soluble in organic solvents and forms a polymeric — s Block Elements Chemistry Question
Question
A Group 2 metal ($M$) forms a chloride that is highly soluble in organic solvents and forms a polymeric chain structure in the solid state. The metal $M$ imparts no characteristic color to the Bunsen flame, and its carbonate is so unstable that it must be stored in an atmosphere of $CO_2$. Identify the metal $M$.
Answer: D
💡 Solution & Explanation
Beryllium ($Be$) compounds are largely covalent due to its high polarizing power. $BeCl_2$ is polymeric in solid state and soluble in organic solvents. $Be$ imparts no flame color due to high ionization energy, and $BeCO_3$ is uniquely unstable, decomposing at room temp unless stored in $CO_2$.
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