Among the following which compound will show the highest lattice energy?
KF
NaF
CsF
RbF
Which statement is not correct?
A sigma bond is weaker than a π- bond
A sigma bond is stronger than a π -bond
A double bond is stronger than a single bond
A double bond is shorter than a single bond
Linear combination of two hybridised orbitals belonging to the two atoms, each having one electron leads to a
Sigma bond
Double bond
coordinate bond
Pi-bond
The correct order of N-O bond lengths in NO, NO-2, NO-3 and N2O4 is
NO-2O4 > NO-2 > NO-3>NO
NO> NO-3>N2O4 >NO-2
NO-3 > NO-2 > N2O4>NO
NO > N2O4 > NO-2 > NO-3
The angle between the overlapping of one s-orbital and one p-orbital is
180o
120o
109o28'
120o,60'
Which one shows maximum hydrogen bonding?
H2O
H2Se
H2S
HF
When the hybridisaiton state of carbon atom changes from sp3 to sp2 and finally to sp, the angle between the hybridised orbitals
Decreases gradually
Decreases considerably
Is not affected
Increases progressively
For two ionic solids CaO and KI, identify the wrong statement among the following
Lattice energy of CaO is much larger than that of KI
KI is soluble in benzene
KI has lower melting point
CaO has higher melting point
The correct order of the O-O bond length in O2, H2O2 and O3 is
O2 > O3 > H2O2
O3 > H2O2 > O2
O2 > H2O2 > O3
H2O2 > O3 > O2
Which structure is linear?
SO2
CO2
CO2-3
SO2-4
