The structures of N(CH3)3 and N(SiH3)3 respectively are
A. trigonal planar and pyramidal
B. pyramidal and trigonal planar
C. pyramidal and pyramidal
D. trigonal planar and trigonal planar
Answer: Option B
This Question Belongs to Engineering Chemistry >> Chemical Bonding And Molecular Structure
Which of the following species has two non-bonded electron pairs on the central atom?
A. TeCI4
B. CIF3
C. lCl2
D. PCl3
The spinels CoFe2O4 and FeFe2O4 respectively are
A. inverse and inverse
B. inverse and normal
C. normal and normal
D. normal and inverse
The arrangement of sulphur in zinc blende and wurtzite structures, respectively are
A. hexagonal close packing and cubic close packing
B. cubic close packing and hexagonal close packing
C. simple cubic packing in both the structures
D. hexagonal dose packing in both the structures
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