Which one of the following has the regular tetrahedral structure?
XeF4
[Ni(CN)4]2-
BF4-
BF4-
Of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one of them?
(n -1)d8 ns2
(n-1)d5 ns2
(n-1)d3 ns2
(n-1)d3 ns2
The maximum number of 90° angles between bond pair of electrons is observed in
dsp3 hybridization
sp3d2 hybridization
dsp2 hybridization
dsp2 hybridization
According to molecular orbital theory, which of the following will not be a viable molecule?
A.
Species | Bond Order |
1/2[2-2] = 0 (does not exist) | |
1/2[2-0] = 1 (Exist) | |
1/2 [2-1] = 0.5 (Exist) | |
1/2 [ 2-1] = 0.5 (Exist) |
Which of the following compounds contain(s) no covalent bond(s)?
KCl, PH3, O2, B2H6, H2SO4
KCl, B2H6
KCl, B2H6, PH3
KCl, H2SO4
KCl
Among Me3N, C5H5N and MeCN (Me = methyl group) the electronegativity of N is in the order
MeCN > C5H5N > Me3N
C5H5N > Me3N > MeCN
Me3N > MeCN > C5H5N
Electronegativity same in all
The ground state magnetic property of B2 and C2 molecules will be
B2 paramagnetic and C2 diamagnetic
B2 diamagnetic and C2 paramagnetic
Both are diamagnetic
Both are paramagnetic
The correct order of O-O bond lenght in O2, H2O2, and O3
O2> O3> H2O2
H2O2 > O3 > O2
O3> O2> H2O2
O3 > H2O2> O2