Which of the following statement is not correct?
Double bond is shorter than a single bond
Sigma bond is weaker than a π (pi) bond
Double bond is stronger than a sing bond
Covalent bond is stronger than hydrogen bond
Which one of the following has the highest dipole moment?
AsH3
SbH3
PH3
NH3
Which of the following does not apply to metallic bond?
Overlapping valence orbitals
Mobile valence electrons
Delocalised electrons
Highly directed bonds
Which of the following molecules does not have a linear arrangement of atoms?
H2S
C2H2
BeH2
CO2
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
AsF5 molecule is trigonal bipyramidal. The hybrid orbitals used by As atoms for bonding are
dx2-y2,dz2, s,px,py
dxy, s, px, py,pz
s,px,py,pz,dxy
dx2-y2,s,px,py,pz
Which one shows maximum hydrogen bonding?
H2O
H2Se
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
