A:-Optical path
B:-Monochromator
C:-Velocity of light
D:-Barometric pressure
Correct Answer:- Option-C
Question48:-Which of the following properties of transition metal complexes can be explained ೧೧ the basis of crystal field
theory 7
A:-Colour
B:-Magnetic moment
C:-Dipole moment
D:-Both (1) 2೧6 (2)
Correct Answer:- Option-D
Question49:-Which of the following symmetry elements is not possessed by trans-dichlorobenzene 7
A

೧೨547]
‏م5‎
‎Correct Answer:- Option-C
Question50:-The number of vibrational degrees of freedom in tolueneis :
A:-39
B:-40
C:-9
0:-24
Correct Answer:- Option-A
Question51:-Decomposition of KCIO® 3" in the presence of MnO* 2" is an example of :
A:-Homogeneous catalysts involving solid reactants
B:-Heterogeneous catalysts involving solid reactants
C:-Homogeneous catalysts involving liguid reactants
D:-Heterogeneous catalysts involving liquid reactants
Correct Answer:- Option-B
Question52:-ldentify the non-benzenoid aromatic compound in the following :
A:-Phenanthrene
B:-Pyrene
C:-Coronene
D:-Ferrocene
Correct Answer:- Option-D
Question53:-During polarographic analysis in which medium Molybdenum gives two waves at -0.37 V and -0.30 V.
A:HNO 3
B:-"H_250 4
ப
D:-HF
Correct Answer:- Option-A
Question54:-The order 'n', initial concentration ` च 0
ക: 1 1/2] ടല (constant) *-* In 80
(1/2) Inn=In(constant) *-* 18 80"
(ना `† (1/2) = 010
0: *t (172)" = In {constant) *-* (n"-*1) In “a_0"
Correct Answer:- Option-D
Question55:-Who used silica gel packed column as a support for a stationary phase and were awarded Nobel Prize in 1952 7
A:-David day and Mikhail tswett
B:-Kirtchevesky and Tiselius
C:-Martin and Synge
D:-Consden and Gorden
Correct Answer:- Option-C
Question56:-Mossbauer effect is also related with resonance fluorescence of :
கோடாக்‌
B:-"gamma’ -rays
C:-’beta’ -rays
D:-*alpha’ -rays

and time of half reaction *t_1/2" for a reaction are related as :