SF₄

XeF₄

SF₆

CF₄

HI > HBr > HCl

HIO₄ > HBrO₄ > HClO₄

HClO₄ > HClO₃ > HClO₂

HF > H₂O > NH₃

XeO₆⁴⁻

HXeO₄

XeO₄²⁻

XeO₄

(a) The size of B atoms is smaller than that of Al

(b) The sum, IE₁ + IE₂ + IE₃ of B is much higher than that of Al

(c) The sum, IE₁ + IE₂ + IE₃ of Al is much higher than that of B

Both (a) and (b)

H_b..B..H_b bond angle is 118^o

Each boron atom undergoes sp² hybridisation

The boron atoms are linked together through hydrogen bridges

All the atoms lie in the same plane