Both are Lewis acids, but BCl₃ is stronger

Both are Lewis acids, but AlCl₃ is stronger

Both are equally strong Lewis acids

None of them is a Lewis acid

BH₃ and B₂H₆

NaBH₄ and C₆H₆

B₂H₆ and B₃N₃H₆

B₄C₃ and C₆H₆

The basic nature of the hydroxides of group 13 increases down the group

All the Al−Cl bonds in Al₂Cl₆ are equivalent

Boron resembles more with silicon than its own family members

Aluminium is a powerful reducing agent

It exists as a dimeric Al₂Cl₆

Two different Al−Cl bond lengths are known

Its aqueous solution is basic

It fumes in moist air

B(OH)₃

Al(OH)₃

Ga(OH)₃

In(OH)₃