Which of the following statements is true?

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(B) In the solid state,$BeCl_2$ and $AlCl_3$ exist as polymeric structures with chlorine bridges. The structure shown in the image represents the brid

Vedclass · Accepted Answer

Both Beryllium and Aluminum chlorides form bridged structures in the solid state.

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(B) In the solid state,$BeCl_2$ and $AlCl_3$ exist as polymeric structures with chlorine bridges. The structure shown in the image represents the bridged dimer/polymer structure where $M = Be$ or $Al$. $BeCl_2$ forms a chain structure with $Cl$ bridges,and $AlCl_3$ forms a layer structure with $Cl$ bridges. Option $A$ is incorrect as the coordination number of $Be$ in $BeCl_2$ is $4$. Option $C$ is incorrect as inorganic benzene is $B_3N_3H_6$ (borazine). Option $D$ is incorrect as boric acid $(H_3BO_3)$ is a Lewis acid,not a protonic acid,as it accepts $OH^-$ ions from water.

Similar Questions

Describe the general trends in the following properties of the elements in Groups $13$ and $14$.
$(A)$ Atomic size
$(B)$ Ionization enthalpy
$(C)$ Metallic character
$(D)$ Oxidation states
$(E)$ Nature of halides

Boron halides behave as Lewis acids because of their nature.

$AlCl_3$ on hydrolysis gives:

$A$ compound $X$,of boron reacts with $NH_3$ on heating to give another compound $Y$,which is called inorganic benzene. The compound $X$ can be prepared by treating $BF_3$ with lithium aluminium hydride. The compounds $X$ and $Y$ are represented by the formulas.

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