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
The weakest among the following types of bond is
ionic
covalent
metallic
H-bond
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
Which of the following molecules does not have a linear arrangement of atoms?
H2S
C2H2
BeH2
CO2
An sp3- hybrid orbital contains
1/4 s- character
1/2 s- character
1/3 s-character
2/3 s- character
Which of the following statements is not correct for sigma and pi bonds formed between two carbon atoms?
Free rotation of atoms about a sigma bond is allowed but not in case of a pi bond
Sigma bond determines the direction between carbon atoms but a pi bond has no primary effect in this regard
Sigma bond is stronger than a pi bond
Bond energies of sigma and pi bonds are of the order of 264 kJ/mol and 347 kJ/mol respectively.
The high density of water compared to ice is due to
Hydrogen bonding interactions
Dipole-dipole interactions
Dipole-induced dipole interactions
Induced dipole-induced dipole interactions
N2and O2, are converted into monoanions N-2 and O-2 respectively. Which of the following statements is wrong?
In N2, the N-N bond weakens
In O-2, O-O bond length increases
In O-2, bond order decreases
N-2, becomes diamagnetic
In X ----H ------ Y, X and Y both are electronegative elements, then
electron density on X will increase and on H will decrease
in both electron density will increase
in both electron density will decrease
on X electron density will decrease and on H increase
Which of the following pairs will form the most stable ionic bond?
Na and Cl
Mg and F
Li and F
Na and F
