VSEPR - Bonding and Molecular Geometry

[WK95]

Homework Statement

What is the electron pair geometry of the following?
SCN−
BeCl2
O3

The Attempt at a Solution

SCN− Linear
BeCl2 Linear
O3 Trigonal Planar

Homework Statement

Would the following structures be polar or nonpolar? (Not applicable if the structure is an ion. Pick "ionic" in that case).
NO2+
XeF2
ClO2−

The Attempt at a Solution

NO2+ ionic
XeF2 nonpolar
ClO2− ionic

Homework Statement

What is the bond angle at the central atom of the following?
ClF2+
HCN
SO2

The Attempt at a Solution

ClF2+ 109
HCN 180
SO2 120

 

[DrDu]

O3 is linear

 

[WK95]

Can you explain? Isn't there a lone pair in the center Oxygen atom?

 

[DrDu]

Of course you are right, sorry. Was thinking in another question.

 

[dextercioby]

How's XeF₂ nonpolar ?

 

[DrDu]

How's XeF₂ nonpolar ?

It is linear and symmetric, so can't have a dipole moment.