Worksheetsdemo
Total questions: 8
Worksheet time: 4mins
Which of the following is an example of super octet molecule ?
ClF3
PCl5
IF7
all of the above
Which of the following substances has the highest melting point?
NaCl
KCl
MgO
BaO
What is the valency of carbon in CO32- ?
2
3
4
-3
In allene structure, three carbon atoms are joined by
Three sigma bonds and three pi bonds
Two sigma bonds and one pi- bond
Two sigma bonds and two pi bonds
Three pi bonds only
The nodal plane in the π-bond of ethene is located in
The molar plane
A plane parallel to the molecular plane
A plane perpendicular to the molecular plane which bisects the carbon-carbon sigma bond at right angle
A plane perpendicular to the molecular plane which contains the carbon-carbon σ-bond.
Which one of the following molecules has the smallest bond angle?
NH3
PH3
H2Se
H2S
In terms of polar character, which of the following order is correct?
NH3 < H2O < HF < H2S
H2S < NH3 < H2O < HF
H2O < NH3 < H2S < HF
HF < H2O < NH3 < H2S
Which of the following pair of molecules will have permanent dipole moment for both members?
NO2 & CO2
NO2 & O3
SiF4 & CO2
SiF4 & NO2
