Topic: Electronic configuration and general trends, Group 13 and 14· p-Block Elements

Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :

1. Calcium chloride

2. Strontium chloride

3. Magnesium chloride

4. Beryllium chloride

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Answer: 4. Beryllium chloride

Key idea: small, highly polarising \(\mathrm{Be^{2+}}\) gives strong covalent character (Fajans' rules).

\(\mathrm{BeCl_2}\) is covalent and soluble in organic solvents. The chlorides of Ca, Sr and Mg are largely ionic with larger cations, so they are not soluble in organic solvents.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is :

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