NEW
Font size
WorksheetsMolecular symmetry
Total questions: 15
Worksheet time: 19mins
1. If all the atoms are reflected across the plane which perpendicular to its principal axis and the molecule having unchanged in configuration, the plane is called as ____________________________.
Vertical reflection plane
Diagonal reflection plane
Horizontal reflection plane
Dihedral reflection plane
Below is a molecule of AX4 with different view. What is the possible axis of symmetry for this molecule?
C4
C2
C3
No answer
Molecule of CH3Cl (tetrahedral-look at the different angle) can have plane of symmetry. Which below answer is the most accurate?
Three of vertical symmetry planes
One of horizontal symmetry plane
One of vertical symmetry plane
Two of dihedral symmetry planes
All the following images (all are planar) have centre of symmetry (i) or inversion, EXCEPT?
Image A
Image B
Image C
Image D
Which of the following symmetry operation does NOT contain in the image of test tube (not planar)?
Centre of symmetry
C6 rotation
vertical sigma plane
C8 rotation
The given structures show the geometry of BH3 (trigonal planar) and NH3 (trigonal pyramidal). Which symmetry elements can be found in both BH₃ and NH₃?
C3 and i
C3 and 3σv
C3 and σh
C3 and S3
Which of the following image has C2 that perpendicular to its principal Cn axis?
Image 1
Image 2
Image 3
No answer
Complex of [Re2Cl8]2− is shown below. Predict how many C2 rotation is allowed?
2
3
4
5
Determine the point group for the following structure of n6-C6Me6
C6h
C6v
D6h
D6v
Determine the point group of the below molecule of SF5Cl
C2v
D4v
D2h
C4v
Predict which molecule contain S4 without C4 axis?
TPY = trigonal pyramid, SP = square planar, T= tetrahedral
PBr3 (TPY)
ICl4- (SP)
[SO4]2- (T)
ICl2Br2 (SP)
The given structure is for 1,2-dibromobenzene (planar). Which of the following Cn axis can be rotated 180o to produce in the same configuration?
A
B
C
D
The given octahedral structure is [MnCl(CO)5]. Which of the following answer is CORRECT?
It has σh plane
It has C2 which perpendicular to the principle Cn axis
C2 and C4 are in the same axis
It has only one σv plane
Naphthalene (planar) can be viewed as in the diagram. How many C2 axis exist in the molecule?
1
2
3
4
Which of the following is FALSE about the structure?
The principle Cn axis is C3
There is 3C2 which perpendicular the principle Cn axis
There is 3 σv plane
There is no S3
