CBSE
Which of the following molecules has the maximum dipole moment?
CO2
CH4
NH3
NH3
Consider the molecules CH4, NH3 and H2O. Which of the given statement is false?
The H-O-H bond angle in H2O is larger than the H-C-H bond angle in CH4.
The H-O-H bond angle in H2O is smaller than the H-N-H bond angle in NH3.
The H-C-H bond angle in CH4 is larger than the H-N-H bond angle in NH3
The H-C-H bond angle in CH4 is larger than the H-N-H bond angle in NH3
The enolic form of ethyl acetoacetate as below has
18 sigma bonds and 2 pi-bond
16 sigma bonds and 1 pi-bond
9 sigma bonds and 2 pi-bond
9 sigma bonds and 2 pi-bond
Which one of the following species has the plane triangular shape?
N3
NO3-
NO2-
NO2-
The total number of Pi bond electrons in the following structure is
4
8
12
12
The pair of an electron in the given carbanion, is present in which orbital?
sp3
sp2
sp
sp
Consider the following compounds
Hyperconjugation occurs in
I only
II only
III only
III only
Predict the correct order among the following.
long pair-lone pair> bond pair-bond pair> lone pair>bond pair
bond pair-bond pair> lone pair-bond pair > lone pair -lone pair
lone pair -bond pair > bond pair- bond pair> lone pair -lone pair
lone pair -bond pair > bond pair- bond pair> lone pair -lone pair
The pair of compounds that can exist together is
FeCl3.SnCl2
HgCl2,SnCl2
FeCl2,SnCl2
FeCl2,SnCl2
Which of the following species contains an equal number of σ and Π bond?
HCO3-
XeO4
(CN)2
(CN)2