Answer:
The correct answer is Water
Step-by-step explanation:
A water molecule is composed of two hydrogen atoms and one oxygen atom.Both hydrogen atoms are linked with the single oxygen atom by covalent bonding.
As oxygen atom contain 6 electrons in the valence orbital,among them 2 are used to form two covalent bond with two hydrogen atom and the rest 4 electrons are present as 2 lone pair of electrons.That"s why oxygen atom in H2O molecule is sp3 hybridized.According to the theory hybridization a sp3 hybridized molecule should have a tetrahedral arrangement.
But in in case of sp3 hybridized water molecule the tetrahedral arrangement is prevented due to priority of lone pair-lone pair repulsion.