WorksheetsTest 1
Total questions: 9
Worksheet time: 5mins
Name
Class
Date
1.
BF3, B Br3, BCl3, B (OH) 3 & B (CH3)3 all the examples of
a)
SP
b)
SP2
c)
SP3
d)
SP2D
2.
The three SP2 hybrid orbitals wave functions are with S, Px & Pz orbital’s hybridise in XZ plane as –
a)
Y1 = a1 fS + b1 fPz + C1 fPx
b)
Y2 = a2 fS + b2 fPz + C2 fPx
c)
Y3 = a3 fS + b3 fPz + C3 fPx
3.
The values of coefficients in SP3 hybridization for a1 & b1 are as follows, when Y1 develop along +z axis as –
a)
Y1 = 2fS + fPx + fPy + fPx
b)
Y1 = ½fS + fPz + fPy + fPx
c)
3
d)
4
4.
TeCl4 and BCl3 both shows SP3d hybridisation, their geometry resp. as –
a)
Distorted trigonal bipyramidal and Bent T-shaped
b)
trigonal bipyramidal both
c)
trigonal bipyramidal and Tetrahedral
d)
Distorted trigonal bipyramidal and square pyramidal
5.
Criteria of Resonance structure suggested by Pauling as
a)
Position of atom fixed only electron change position
b)
Contributing structure should be of equal energy
c)
Number of unpaired electrons and paired electrons must be same is resonance structure
d)
A, B, C
6.
In NO3- ion and CO32- ion the number of bond pairs in resonating structures are resp. as
a)
Both 2
b)
Both 3
c)
Both 4
d)
Both 5
7.
The boiling points of the halogens increase going from F2 to I2. What types of intermolecular forces are responsible for this trend?
a)
Permanent dipole
b)
Hydrogen bonding
c)
Ion-ion attraction
d)
London dispersion forces
8.
The methods of detection of hydrogen bonding in the molecules are
a)
IR, PMR Spectroscopy
b)
X-ray method
c)
Electron absorption spectroscopy
d)
A, B, C
9.
Hydrides of group 14 elements show smooth increase curve in Boiling points, but in Group15, 16 & 17 trend changes due to
a)
Weak Vander Waals force
b)
Intermolecular Hydrogen bonding
c)
Hydrogen bonding
d)
Intramolecular hydrogen bonding
100 %
