Statement - I : Xenon tetrafluoride molecule is denoted as AB₄E₄, where E is a lone pair
Statement - II : All AB₄ type molecules have no dipolemoment, because of symmetrical tetrahedral structure.

Statement I is false because the Xenon tetrafluoride molecule (XeF₄) has a molecular formula of AB₄E₂, where E denotes two lone pairs on the central xenon atom.

However, statement II is false. Although tetrahedral molecules with the AB₄ formula, like methane (CH₄), have no dipole moment because of their symmetrical structure, XeF₄ does have a dipole moment because its lone pairs are arranged asymmetrically. This means that the electronegativity of the fluorine atoms in the molecule is not balanced, resulting in a net dipole moment.