Statement 1: AlCl3 forms dimer Al2Cl6 in gaseous state but it dissolves in H2O forming [Al(H2O )6]3+ and 3Cl- ions. Statement 2: Aqueous solution of AlCl3 is acidic due to hydrolysis.

Question

Statement 1: AlCl3 forms dimer Al2Cl6 in gaseous state but it dissolves in H2O forming [Al(H2O )6]3+ and 3Cl- ions. Statement 2: Aqueous solution of AlCl3 is acidic due to hydrolysis. (A) If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1. (B) Ifboth Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1. (C) If Statement 1 is true but Statement 2 is false. (D) If Statement 1 is false but Statement 2 is true.

Tardigrade Admin · Accepted Answer

Statement 1: In gaseous phase and in non-polar solvent like benzene

A lC l_{3}

exists as dimer,

A l_{2} C l_{6} .

High enthalpy of hydration in water breaks the covalent dimer forming

[A l (H_{2} O)_{6}]^{3 +}

and

3 C l^{-}

Statement 2:

A lC l_{3} + 3 H_{2} O \to A l (O H)_{3} + 3 H Cl

Q. Statement 1: $A lC l_{3}$ forms dimer $A l_{2} C l_{6}$ in gaseous state but it dissolves in $H_{2} O$ forming $[A l (H_{2} O)_{6}]^{3 +}$ and $3 C l^{-}$ ions.
Statement 2: Aqueous solution of $A lC l_{3}$ is acidic due to hydrolysis.

If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1.

Ifboth Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1.

If Statement 1 is true but Statement 2 is false.

If Statement 1 is false but Statement 2 is true.

Statement 1: In gaseous phase and in non-polar solvent like benzene $A lC l_{3}$ exists as dimer, $A l_{2} C l_{6} .$ High enthalpy of hydration in water breaks the covalent dimer forming $[A l (H_{2} O)_{6}]^{3 +}$ and $3 C l^{-}$
Statement 2: $A lC l_{3} + 3 H_{2} O \to A l (O H)_{3} + 3 H Cl$

Q. Statement 1: AlCl3​ forms dimer Al2​Cl6​ in gaseous state but it dissolves in H2​O forming [Al(H2​O)6​]3+ and 3Cl− ions. Statement 2: Aqueous solution of AlCl3​ is acidic due to hydrolysis.