Which of the following are isostructural pairs?
A. SO2−4andCrO2−4
B. SiCl4andTiCl4
C. NH3andNO−3
D. BCl3andBrCl3
A
A and C only
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B
B and C only
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C
A and B only
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D
C and D only
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Solution
The correct option is C A and B only Isostructural species are those which have the same shape. SO2−4andCrO2−4 have tetrahedral shape. SiCl4andTiCl4 have tetrahedral shape. NH3 has trigonal pyramidal shape but NO−3 has trigonal planar shape. BCl3 has trigonal planar shape but BrCl3 has T-shape.