Ionization energy of Al =5137 kJ mol -1(Δ H) hydration of Al 3+=-4665 kJ mol -1.(Δ H) text hydration for Cl -=-381 kJ mol -1 . Which of the following statement is correct

Question

Ionization energy of Al =5137 kJ mol -1(Δ H) hydration of Al 3+=-4665 kJ mol -1.(Δ H) text hydration for Cl -=-381 kJ mol -1 . Which of the following statement is correct (A) AlCl 3 would remain covalent in aqueous solution (B) Only at infinite dilution AlCl 3 undergoes ionization (C) In aqueous solution AlCl 3 becomes ionic (D) None of these

Tardigrade Admin · Accepted Answer

If AlCl 3 is present in ionic state in aqueous solution, therefore it has Al 3+ and 3 Cl - ions Standard heat of hydration of Al 3+ and 3 Cl - ions =-4665+3 ×(-381) kJ mol -1 =-5808 kJ / mol Required energy of ionization of Al =5137 kJ mol -1 ∴ Hydration energy overcomes ionization energy ∴ AlCl 3 would be ionic in aqueous solution

Q. Ionization energy of $A l = 5137 k J m o l^{- 1} (Δ H)$ hydration of $A l^{3 +} = - 4665 k J m o l^{- 1} . (Δ H)_{hydration}$ for $C l^{-} = - 381 k J$ $m o l^{- 1} .$ Which of the following statement is correct

$A lC l_{3}$ would remain covalent in aqueous solution

Only at infinite dilution $A lC l_{3}$ undergoes ionization

In aqueous solution $A lC l_{3}$ becomes ionic

None of these

Q. Ionization energy of Al=5137kJmol−1(ΔH) hydration of Al3+=−4665kJmol−1.(ΔH)hydration ​ for Cl−=−381kJ mol−1. Which of the following statement is correct

AlCl3​ would remain covalent in aqueous solution

Only at infinite dilution AlCl3​ undergoes ionization

In aqueous solution AlCl3​ becomes ionic

None of these

Q. Ionization energy of $A l = 5137 k J m o l^{- 1} (Δ H)$ hydration of $A l^{3 +} = - 4665 k J m o l^{- 1} . (Δ H)_{hydration}$ for $C l^{-} = - 381 k J$ $m o l^{- 1} .$ Which of the following statement is correct

$A lC l_{3}$ would remain covalent in aqueous solution

Only at infinite dilution $A lC l_{3}$ undergoes ionization

In aqueous solution $A lC l_{3}$ becomes ionic