CBSE
Multiple Choice QuestionsIn which of the following pairs, both molecules possess dipole moment ?
CO2, SO2
BCl3, PCl3
H2O, SO2
CO2, CS2
The total number of orbitals in the fifth energy level is
5
10
18
25
What is the wavelength (in m) of a particle of mass 6.62 x 10-29 g moving with a velocity of 103 ms-1?
6.62 x 10-4
6.62 x 10-3
10-5
105
H-O-H bond angle in H2O is 104.5° and not 109° 28' because of
lone pair-lone pair repulsion
lone pair-bond pair repulsion
bond pair-bond pair repulsion
high electronegativity of oxygen
Which of the following has a bond formed by overlap of sp-sp3 hybrid orbitals?
CH3 - C C - H
CH3 - CH = CH - CH3
CH2 = CH - CH = CH2
HC CH
The atomic number of an element 'M' is 26. How many electrons are present in the M-shell of the element in its M3+ state ?
11
15
14
13
The bond length of HCl bond is 2.29 x 10-10 m. The percentage ionic character of HCl, if measured dipole moment is 6.226 x 10-30 C- m, is
8%
20%
17%
50%
Which of the following has the highest bond order?
N2
O2
He2
H2
The hybridisation state of carbon in fullerene is
sp
sp2
sp3
sp3d
The correct order towards bond angle is
sp3 < sp2 < sp
sp < sp2 < sp3
sp < sp3 < sp2
sp2 < sp3 < sp
