AP EAMCET · Chemistry · Chemical Bonding and Molecular Structure
Aluminium (III) chloride forms a dimer because aluminium
- A belongs to boron family.
- B has a very high ionisation enthalpy.
- C can have higher coordination number.
- D is next to magnesium.
Answer & Solution
Correct Answer
(C) can have higher coordination number.
Step-by-step Solution
Detailed explanation
\(\mathrm{AlCl}_3\) can form dimer and exists as \(\mathrm{Al}_2 \mathrm{Cl}_6\) because aluminium has vacant \(d\)-orbital which can accomodate electron from chlorine atom. \(\mathrm{AlCl}_3\) is an electron deficient compound that completes its octet by taking electron pair…
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