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WorksheetsIII B.Sc Physical Chemistry Quiz -Group theory and Spectros
Total questions: 20
Worksheet time: 10mins
The point group of BF3 Molecule
D3h
C3h
D3d
D3V
The molecule with centre of inversion is
CO2
NH3
H2O
Cis N2F2
The number of symmetry elements of ammonia molecule is
3
4
5
6
The Character for C2(z) matrix operation is
-1
1
0
3
The number of horizontal plane σh plane in BF3 molecule is /are
1
2
3
4
Which of the following is a two phase system
water and ether
sand in water
kerosene in water
All of the above
The triple point of the water system is
Univariant
Invariant
Bivariant
Trivariant
The number of triple point in sulphur system (excluding metastable state
)
1
2
3
4
The phase diagram of ferric chloride water have
.......... hydrates
4
6
5
2
The euctectic temperature of NaCl -H2O system is
- 210C
210C
-220C
220C
The colour of a colloidal solution of gold nanoparticle is
Red
Yellow
Green
blue
Sol-gel method is used to prepare nanoparticles
Metal
Metal oxides
Metal Sulphides
metal carbonates
The nano material of 1-10 nm in two dimension is called
Quantum well
Quantum dot
Quantum Wire
all of the above
What are the three types of chirality associated with a carbon nanotube?
crystalline, amorphous and polycrystalline
divergent, convergent and zigzag
chiral, armchair and zigzag
metallic, semiconducting and superconducting
The total number of Bravaiss lattices in a crystal is
7
12
13
14
The crystal associated with metal excess defect involves type of
semiconductor
N-type
P-Type
both
Insulator
An ion occupies an interstitial position in the crystal lattice this is an example of
Schottky defect
Frenkel defect
Metal excess defect
None
The substance which retain their magnetic property when removed from the magnetic field
Ferromagnetic
Ferrimagnetic
Diamagnetic
Paramagnetic
The temperature at which the transition of ferromagnetism to paramagnetism takes place is called
Curie-Weiss temperature
Curie temperature
Debye temperature
Neel temperature
The dipole moment value of symmetrical molecule is
i
o
2
4
