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Worksheets3.1.3.5 Shapes of simple molecules + ions
Total questions: 11
Worksheet time: 6mins
Which species has a shape that is influenced by the presence of one or more lone pairs of electrons around the central atom?
AlCl3
ClF3
IF6+
PCl6–
Which species has one or more bond angle(s) of 90°?
CH4
NH4+
ClF4−
AlCl4−
Which is the most likely bond angle around the oxygen atom in ethanol?
104.5°
109.5°
120°
180°
Which of these species is not planar?
HCHO
CH3+
CH3OH
C2H4
Which of these species has a trigonal planar structure?
PH3
BCl3
H3O+
CH3−
In which one of the following species is the shape influenced by the presence of one or more lone pairs of electrons?
NH2-
NH4+
[CH3NH3]+
[Co(NH3)6]2+
Which one of the following molecules is not planar?
BF3
NCl3
C2H4
HCHO
Which one of the following ions has three lone pairs of electrons around the central atom?
BF2-
NH2-
ClF2-
PF6-
Which one of the following is the most likely value for the bond angle α shown in the diagram of SF4?
118°
101°
90°
88°
Which one of the following molecules or ions is pyramidal in shape?
BF3
CH3+
CH3-
SF3-
Which one of the following has a shape which is not influenced by a lone pair of electrons?
CH3OH
H2F+
BF3
NF3
