Chemical Bonding, Structure, and the Periodic Table
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A-Level Chemistry Q & A Practice
1 of 5 free exam-style exercises in this topic
Which complete set of shapes and approximate bond angles is correct?
species
electron regions around central atom
BF₃
3 bonding
NH₃
3 bonding+1 lone
SF₆
6 bonding
B
F
F
F
120°
Select one option.
A
BF₃ planar; NH₃ planar; SF₆ tetrahedral
B
BF₃ bent 120°; NH₃ planar 120°; SF₆ octahedral 90°
C
all linear
D
BF₃ tetrahedral 109.5°; NH₃ pyramidal 109.5°; SF₆ trigonal bipyramidal
E
BF₃ trigonal planar 120°; NH₃ trigonal pyramidal 107°; SF₆ octahedral 90°
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