Which of the following species contains three bond pairs and one lone pair around the central atoms?
H2O
BF3
NH2-
NH2-
Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?
[BCl3 and BrCl3]
[NH3 and NO3-]
[NF3 and BF3]
[NF3 and BF3]
During the change of O2 to O2- ion, the electron adds on which one of the following orbitals?
Ï€* orbital
Ï€ orbital
σ* orbital
σ* orbital
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.
NO< O2-<C22- < He2+
 O2- <NO< C22- < He2+
C22-Â < He2+ <O2- <NO
C22-Â < He2+ <O2- <NO
Which of the two ions from the list given below have the geometry that is explained by the same hybridization of orbitals
The Correct order of increasing bond length of C - H, C-O, C - C and C = C is
C - C < C=C < C - O < C - H
C - O < C - H < C - C < C = C
C - H < C - O < Â C - C < C= C
C - H Â < C = C < C - O < C - C
Which of the following is least likely to behave as Lewis base?Â
NH3
BF3
OH-
H2O
B.
BF3
BF3 is an electron deficient species, thus behaves like a Lewis acid.