Aluminium chloride in acidified aqueous solution forms a complex 'A'. The formula of A and hybridisation state of Al in 'A' is respectively-

1. [Al(H₂O)₆]³⁺, sp³d²

2. [Al(H₂O)₄]³⁺, sp³

3. [Al(H2O)4]3+, dsp2

4. [Al(H₂O)]³⁺, d²sp³

Which of the following is the correct statement?

1. Ga⁺ is more stable than ln⁺.
2. Al⁺ is more stable than ln⁺.
3. Ga⁺ is more stable than Al⁺.
4. Al⁺ is more stable than Ga⁺.