Which of the following statements about anhydrous aluminium chloride is correct?

Question

Which of the following statements about anhydrous aluminium chloride is correct? (A) It exists as AlCl3 molecules (B) It is not easily hydrolysed (C) It sublimes at 100° C under vacuum (D) It is a strong Lewis base

Tardigrade Admin · Accepted Answer

AlCl3 exists as a dimer (Al2Cl6). It is a strong Lewis acid as it has an incomplete octet and has a tendency to gain electrons. AlCl3 undergoes hydrolysis easily and forms an acidic solution. AlCl3 + 3H2O arrow Al(OH)3 + 3HCl

Q. Which of the following statements about anhydrous aluminium chloride is correct?

It exists as $A lC l_{3}$ molecules

It is not easily hydrolysed

It sublimes at $10 0^{\circ}$ C under vacuum

It is a strong Lewis base

$A lC l_{3}$ exists as a dimer $(A l_{2} C l_{6})$ . It is a strong Lewis acid as it has an incomplete octet and has a tendency to gain electrons. $A lC l_{3}$ undergoes hydrolysis easily and forms an acidic solution. $A lC l_{3} + 3 H_{2} O \to A l (O H)_{3} + 3 H Cl$

Q. Which of the following statements about anhydrous aluminium chloride is correct?

It exists as AlCl3​ molecules

It is not easily hydrolysed

It sublimes at 100∘ C under vacuum

It is a strong Lewis base

AlCl3​ exists as a dimer (Al2​Cl6​). It is a strong Lewis acid as it has an incomplete octet and has a tendency to gain electrons. AlCl3​ undergoes hydrolysis easily and forms an acidic solution. AlCl3​+3H2​O→Al(OH)3​+3HCl

It exists as $A lC l_{3}$ molecules

It sublimes at $10 0^{\circ}$ C under vacuum

$A lC l_{3}$ exists as a dimer $(A l_{2} C l_{6})$ . It is a strong Lewis acid as it has an incomplete octet and has a tendency to gain electrons. $A lC l_{3}$ undergoes hydrolysis easily and forms an acidic solution. $A lC l_{3} + 3 H_{2} O \to A l (O H)_{3} + 3 H Cl$