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What is the bond angle in water (H2O) due to the presence of hydrogen? (2023)

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Question: What is the bond angle in water (H2O) due to the presence of hydrogen? (2023)

Options:

  1. 90 degrees
  2. 104.5 degrees
  3. 120 degrees
  4. 180 degrees

Correct Answer: 104.5 degrees

Exam Year: 2023

Solution: 

The bond angle in water is approximately 104.5 degrees due to the bent shape of the molecule.

What is the bond angle in water (H2O) due to the presence of hydrogen? (2023)

Practice Questions

Q1
What is the bond angle in water (H2O) due to the presence of hydrogen? (2023)
  1. 90 degrees
  2. 104.5 degrees
  3. 120 degrees
  4. 180 degrees

Questions & Step-by-Step Solutions

What is the bond angle in water (H2O) due to the presence of hydrogen? (2023)
  • Step 1: Understand that water (H2O) has two hydrogen atoms and one oxygen atom.
  • Step 2: Know that the shape of the water molecule is bent, not straight.
  • Step 3: Recognize that the bond angle is the angle between the two hydrogen atoms.
  • Step 4: Learn that the bond angle in water is approximately 104.5 degrees.
  • Step 5: Remember that this angle is due to the repulsion between the lone pairs of electrons on the oxygen atom.
  • Molecular Geometry – Understanding the shape of molecules and how it affects bond angles.
  • VSEPR Theory – Valence Shell Electron Pair Repulsion theory explains the arrangement of electron pairs around a central atom.
  • Bond Angles – The angle formed between two bonds in a molecule, influenced by the molecular shape.
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