The magnetic nature of boron molecule is same as the magnetic nature of
nitrogen molecule
carbon molecule
unipositive nitrogen molecule
oxide ion
C.
unipositive nitrogen molecule
The magnetic nature of boron molecule is same as the magnetic nature of unipositive nitrogen molecule.
Boron - B2 = (5 + 5 = 10) = σ1s2,
(Since, two unpaired electrons are present, the boron molecule is paramagnetic).
Nitrogen -
(Since, one unpaired electron, it is paramagentic).
Which of the following is not a true alum?
Na2SO4.Al2(SO4)3.24H2O
MgSO4.Cr2(SO4)3.24H2O
K2SO4.Cr2(SO4)3.24H2O
(NH4)2SO4.Fe(SO4)3.24H2O
The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm-3 respectively. If the standard free energy difference is 1895 J mol-1, the pressure at which graphite will be transformed into diamond is
9.92 × 108 Pa
9.92 × 107 Pa
9.92 × 106 Pa
None of these
The order of covalent character of KF, KI, KCl is
KCl < KF < KI
KI < KCl < KF
KF < KI < KCl
KF < KCl < Kl