CBSE
Pick out the incorrect statement from the following :
sp hybrid orbitals are equivalent and are at an angle of 180° with each other
sp2 hybrid orbitals are equivalent and bond angle between any two of them is 120°
sp3d2 hybrid orbitals are equivalent and are oriented towards corners of a regular octahedron
dsp2 hybrid orbitals are equivalent with a bond angle of 90° between the two atoms
The AsF5 molecule is trigonal bipyramidal. The hybrid orbitals used by the As atoms for bonding are
dx2-y2, dz2, s, px, py
dxy, s, px, py, pz
dx2-y2, s, px, py
s, px, py, pz, dz2
Which of the following has sp3 -hybridisation?
BCl3
PCl3
BeCl3
None of these
Among the following compounds which is planar in shape is
acetylene
benzene
isobutene
methane
A covalent molecule AB3 has pyramidal structure. The number of lone pair and bond pair of electrons in the molecule a respectively :
2 and 2
0 and 2
3 and 1
1 and 3
Which of the following ions is paramagnetic?
Cu++
Zn++
Ni++
Both 'a' and 'c'
The molecule having largest dipole moment among the following is
CHI3
CH4
CHCl3
CCl4
The number of σ bonds in P4O10 is:
6
16
7
17
Which of the following electronic configurations has maximum energy?
The hybridisation of the central atom in BrF5 molecule is :
sp3
dsp2
sp3d2
d3sp3