In the following which of the two are
paramagnetic:
(1) N2

(2) CO

(3) B2

(4) NO2

Increasing order of bond length in NO, NO+
and NO–
is:

The paramagnetic property of oxygen is well
explained by:

Which of the following has fractional bond
order?

Higher is the bond order, greater is:

The bond order of CO molecule on the basis
of molecular orbital theory is:

Which of the follwing group of molecules have
2
1
2 bond order:

Which of the following species will have the
minimum bond energy:

Which of the following ion has not bond order
of 2.5 ?

N2
and O2
are converted into monoanions,
 N2
and  O2
respectively. Which of the

following statements is wrong?

Which of the following has maximum bond
stength

BeF2

has zero dipole moment whereas H2O
has dipole moment because:

Which of the following molecule have zero
dipole moment:

The dipole moment of NH3
is:

Dipole moment is shown by:

The correct oreder of dipole moment is:

Which contains both polar and non-polar
bonds?

What conclusion can be draw from the fact
that BF3
has no dipole moment but PF3
is

does:

Species having zero dipole moment:

The correct order of decreasing polarity is:

The dipole moment of given molecules are
such that

N atom in  NH4

ion involves the hybridization:

A hybrid orbital formed from s-and p-orbital
can contribute to:

Which carbon is more electronegative:

Which of the following statement is incorrect
of PCl5
:

In a change from PCl3 PCl5

, The hybrid

state of P change from:

The hybrid state of B in  BF4
is :

The magnitude of the lattice energy of a solid
increases if:

Out of CHCl3
, CH4
and SF4
the molecules

having regular geometry are:

The bond angle in H2O molecule is less than
that of NH3

molecule because:

In which of the following species the angle
arround the central atom is exactly equal to
109°28’ :

The pair of molecules having identical
geometry is:

Which of the following compounds is non-
polar:

Which of the following does not apply to
metallic bond:

Acetic acid is a dimer in benzene due to

The nature of intermolecular forces among
benzene (C6H6

) molecules is:

The compound formed by which of the
following pair of ions will have lowest melting
point :

Amongst NH3
, BeCl2
, CO2

and H2O, the non-
linear molecules are

Which is not correct:

Which of the following match is not correct:

The number of unpaired electrons in
paramagnetic tetrachloromagnate (II) anion is:

The value of bond order in NO+

according to

MOT is:

Which one of the following is most polar:

Which of the following halogens has the
highest bond energy:

In the series, ethane, ethylene & acetylene,
the carbon-hydrogen bond length is:

The hybridization of phosphorous in POCl3
is

the same as in:

The formation of which of the following ions
is not possible

The geometrical arrangement and shape of

3
I are respectively

Which of the following conditions is not
correct for resonating structures:

What is not true about resonance: