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Mark the incorrect statement in context to the structure of H2O molecule.

  • a)
    The O-H bond is polar.

  • b)
    There exists H-bonding between the molecules.

  • c)
    The net dipole moment is zero as the two dipoles cancel out.

  • d)
    The molecule is planar.

Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Mark theincorrectstatement in context to the structure of H2O molecule...
Explanation:
The structure of H2O molecule is as follows:
- It consists of one oxygen atom and two hydrogen atoms.
- The O-H bond is polar because of the difference in electronegativity between oxygen and hydrogen atoms.
- The molecule is non-planar because of the two lone pairs of electrons present on oxygen, which repel the bonding pairs and distort the molecule from a linear to a bent shape.
- There exists H-bonding between the molecules because of the presence of a highly electronegative O atom and a partially positive H atom.
- The net dipole moment of the molecule is not zero because the two dipoles do not cancel out. The molecule has a net dipole moment of 1.85 D, which makes it a polar molecule.

Therefore, option C is the incorrect statement as the net dipole moment of the molecule is not zero.
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Community Answer
Mark theincorrectstatement in context to the structure of H2O molecule...
Electron dot structure of H2O is as follows.


Thus, oxygen atom undergoes sp3 hybridisation and it should be tetrahedral, but due to the presence of two lone pairs of electrons, it is angular with a bond angle of 104.5o.

Hence, the two dipoles do not cancel out and the net dipole moment is not zero.
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Mark theincorrectstatement in context to the structure of H2O molecule.a)The O-H bond is polar.b)There exists H-bonding between the molecules.c)The net dipole moment is zero as the two dipoles cancel out.d)The molecule is planar.Correct answer is option 'C'. Can you explain this answer?
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