CBSE
Multiple Choice QuestionsIn which of the following molecules the central atom does not have sp3 hybridisation?
CH4
SF4
BF4-
BF4-
Which one of the following species does not exist under normal conditions?
Be2+
Be2
B2
B2
In which one of the following species the central atom has the type of hybridisation which si not the same as that present in the other three?
SF4
I3-
SbCl52-
SbCl52-
The correct order of the decreasing ionic radii among the following isoelectronic species is
Ca2+ > K+ >S2- > Cl-
Cl- > S2- > Ca2+ > K+
S2- > Cl- > K+ > Ca2+
S2- > Cl- > K+ > Ca2+
In which of the following pairs, both the species are not isostructural?
SiCl4.PCl4+
Diamond, carbide
NH3, PH3
NH3, PH3
Decreasing order of stability of 
is
In which of the following pairs of molecules/ions, the central atoms have sp2 hybridization?
NO2- and NH3
BF3 and NO2-
NH2- and H2O
NH2- and H2O
Which of the following has the minimum bond length?
O2-
O22-
O2
O2
Which of the following is least likely to behave as Lewis base?
NH3
BF3
OH-
H2O
Which of the following structures is the most preferred and hence of lowest energy of SO3 ?
