VSEPR Practice

Front

What is the VSEPR theory used for?

Back

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

Front

What molecular geometry is associated with 2 bonded pairs and 2 lone pairs of electrons?

Back

Bent.

Front

Define a lone pair in the context of molecular geometry.

Back

A lone pair is a pair of non-bonding electrons that are not shared with another atom.

Front

What is the molecular geometry of BF3?

Back

Trigonal planar.

Front

What shape does a molecule with 4 bonded pairs of electrons have?

Back

Tetrahedral.

Front

What is the molecular geometry of PH3?

Back

Trigonal pyramidal.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs occupy space and repel bonded pairs, altering the bond angles and overall shape of the molecule.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

Approximately 109.5 degrees.

Front

What is the difference between molecular geometry and electron geometry?

Back

Molecular geometry refers to the arrangement of atoms in a molecule, while electron geometry considers the arrangement of all electron pairs, including lone pairs.

Front

What molecular geometry is associated with 3 bonded pairs and 1 lone pair?

Back

Trigonal pyramidal.