51
Decomposition of KCIO3 in the presence of MnO2 is an example of :
Answer
B. Heterogeneous catalysts involving solid reactants
52
Identify the non-benzenoid aromatic compound in the following :
Answer
D. Ferrocene
53
During polarographic analysis in which medium Molybdenum gives two waves at -0.37 V and -0.30 V.
Answer
A. HNO3
54
The order 'n', initial concentration `a0`and time of half reaction t1/2 for a reaction are related as :
Answer
D. ln `t(1/2)` = ln (constant) `-` (n`-`1) ln `a0`
55
Who used silica gel packed column as a support for a stationary phase and were awarded Nobel Prize in 1952?
Answer
C. Martin and Synge
56
Mossbauer effect is also related with resonance fluorescence of :
Answer
B. gamma-rays
57
Which of the following is microwave inactive?
Answer
A. Cl2
58
The polarographic limiting current which are controlled not only by the rate of diffusion of the reactive species, but also by the rate of some chemical reaction related to the electrode process are known as :
Answer
D. Kinetic current
59
Addition of `Br2` to methyl acetylene yielding trans 1,2-trans 1,2-dibromopropene is :
Answer
C. Stereoselective
60
Who proposed the dead stop end point method in amperometry?
Answer
B. Foulk
61
The best method to determine the size of the Au nanoparticles is :
Answer
B. SEM
62
The valency of an element can be determined by coulometry using the equation :
Answer
A. W=AQ/n x 96500
63
The chromatographic process in which the separation of the sample components takes place according to molecular size are called :
Answer
C. Exclusion chromatography
64
Which method detects the smallest particles?
Answer
D. STM
65
Which is an example for natural inorganic anion exchanger?
Answer
C. Dolomite
66
STM shows images of atoms based on :
Answer
D. The amount of tunneling current
67
In which method the voltage applied across the indicator electrode and reference electrode is kept constant and the current passing through the cell is measured and plotted against the volume of reagent?
Answer
A. Amperometry
68
Name the effect which says that the wavelength of an X-ray increases when it is scattered by an atomic electron.
Answer
B. Compton
69
The characteristic absorption bands of the carbonyl group in IR spectra are given below. Which one is incorrect?
Answer
C. CH3COOH ~ 1650 - 1700 cm-1
70
Which of the options given below represents eigen equation?
Answer
Question Cancelled
71
Which of the following molecules will show an absorption in UV/Visible region?
Answer
D. CH2=O
72
Atomic force microscopy shows images of surfaces through :
Answer
B. The force of the surface on the tip
73
Identify the non-aromatic compound in the following :
Answer
A. Cyclodecapentene
74
Wave function in quantum mechanics represents :
Answer
D. A state of the system
75
The point group symmetry of the staggered form of ethane molecule is :
Answer
B. D(3d)
aswathy
2013 previous question paper for hsst chemistry