Some of the group 2 metal halides are covalent and soluble in organic solvents. Among the following metal halides the one which is soluble in enthanol is
(a) $B e C l_{2}$ (b) $M g C l_{2}$ (c) $C a C l_{2}$ (d) $S r C l_{2}$

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Solution

Ethanol is an orgainic compound i.e., of covalent character "like dissolves like " To dissolve in ethanol the compound should have more covalent character. Beryllium haildes have covalent character due to small size and high effective nuclear charge. HEnce, $B e C l_{2}$ is most covalent among all other chlorides.

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Similar questions

M g C l_{2} \cdot 6 H_{2} O, C a C l_{2} \cdot 6 H_{2} O, B a C l_{2} \cdot 2 H_{2} O

S r C l_{2} \cdot 2 H_{2} O

R a C l_{2} < B a C l_{2} < S r C l_{2} < C a C l_{2} < M g C l_{2} < B e C l_{2}

B e C l_{2} < M g C l_{2} < C a C l_{2} < S r C l_{2} < B a C l_{2} < R a C l_{2}

R a C l_{2} < B a C l_{2} < S r C l_{2} < C a C l_{2} < M g C l_{2} < B e C l_{2}

R a C l_{2} < B a C l_{2} < S r C l_{2} < C a C l_{2} < M g C l_{2} < B e C l_{2}

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