The covalent alkaline earth metal halide (X=Cl, Br, I) is :

Question

The covalent alkaline earth metal halide (X=Cl, Br, I) is : (A) MgX 2 (B) CaX 2 (C) BeX2 (D) SrX2

Tardigrade Admin · Accepted Answer

According to Fajan's rule, greater the polarising power of cation greater would be the covalent character. Since, Be 2+ has maximum polarising power among given cations. Therefore, BeX 2 would be most covalent alkaline earth metal halides among the given halides.

Q. The covalent alkaline earth metal halide $(X = Cl, B r, I)$ is :

$M g X_{2}$

$C a X_{2}$

$B e X_{2}$

$S r X_{2}$

According to Fajan's rule, greater the polarising power of cation greater would be the covalent character. Since, $B e^{2 +}$ has maximum polarising power among given cations. Therefore, $B e X_{2}$ would be most covalent alkaline earth metal halides among the given halides.

Q. The covalent alkaline earth metal halide (X=Cl,Br,I) is :

MgX2​

CaX2​

BeX2​

SrX2​