Oxygen has an electronegativity value of 3.4 and hydrogen has an electronegativity value of 2.2. Which of the following correctly shows the location of the positive and negative dipoles in a molecule of water (H2O)?O δ– and H δ–O δ– and H δ+The molecule has no net dipole moment.O δ+ and H δ–Submit answer
Question
Oxygen has an electronegativity value of 3.4 and hydrogen has an electronegativity value of 2.2. Which of the following correctly shows the location of the positive and negative dipoles in a molecule of water (H2O)?O δ– and H δ–O δ– and H δ+The molecule has no net dipole moment.O δ+ and H δ–Submit answer
Solution
The correct answer is: O δ– and H δ+.
This is because electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The atom with the higher electronegativity will have a partial negative charge (δ–) because it has a stronger pull on the electrons. The atom with the lower electronegativity will have a partial positive charge (δ+).
In a water molecule, oxygen is more electronegative than hydrogen, so it will have a partial negative charge. The hydrogens, being less electronegative, will have a partial positive charge.
Similar Questions
A water molecule has an electric dipole moment 6.4 x 10 cm when it is in vapour state. The distance in metre between the centre of positive and negative charge of the molecule is (a) 4x10-10 104 10-12 (b) 4 x 10-11 (d) 4 x 10-13
The water molecule is said to be 'Polarized' because,Group of answer choicesIt behaves in two different waysthe water molecule has a south and north polethere are small negative and positive charges on either side of the water molecule.the water molecule lies on one sideit is made of one hydrogen and one oxygen atom
The correct order regarding dipole moment is :CH3Cl < CH3FH2O > H2O2 > BF3 > NH3
The water molecule shows ______ because it has negatively-charged regions in the vicinity of the oxygen atom and positively-charged regions near the hydrogen atoms. Multiple choice question.equalityneutralitypolarityionization
Electronegativity of oxygen is________________electronegativity of hydrogen.more thanLess thanEqual toZero
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.