VSEPR Theory

Front

What is VSEPR Theory?

Back

VSEPR Theory (Valence Shell Electron Pair Repulsion Theory) is a model used to predict the geometry of individual molecules based on the repulsion between the electron pairs in the valence shell of the central atom.

Front

What does the term 'bond angle' refer to?

Back

Bond angle is the angle formed between three atoms across at least two bonds. It is a key factor in determining the shape of a molecule.

Front

What molecular shape is associated with a bond angle of 109.5 degrees?

Back

Tetrahedral shape is associated with a bond angle of 109.5 degrees.

Front

Which molecular shape has a bond angle of 120 degrees?

Back

Trigonal planar shape has a bond angle of 120 degrees.

Front

What is the molecular shape of CO2?

Back

CO2 has a linear molecular shape.

Front

What is the molecular shape of H2S?

Back

H2S has a bent molecular shape.

Front

What is the bond angle in a linear molecular shape?

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The bond angle in a linear molecular shape is 180 degrees.

Front

What is the molecular shape of CH4?

Back

CH4 has a tetrahedral molecular shape.

Front

What is the significance of lone pairs in VSEPR Theory?

Back

Lone pairs of electrons occupy space and can affect the geometry of a molecule by repelling bonding pairs.

Front

What is the molecular shape of BF3?

Back

BF3 has a trigonal planar molecular shape.