| Post Name | ASSISTANT CHEMIST |
|---|---|
| Department | TRAVANCORE TITANIUM PRODUCTS LIMITED |
| Question Paper Code | 211/2014 |
| Date of Test | 12 December 2014 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Which one of the following amino acids is optically inactive ?
Answer
B. Glycine
2
| Which one of the following bases is not present in RNA ?
Answer
C. Thymine
3
Name the alkaloid present in the poisonous herb hemlock.
Answer
A. Coniine
4
How many proton signals would be expected in NMR spectrum of BrCH,CH,Br ?
Answer
C. 1
5
Shift of the absorption maximum to the longer wavelength is called :
Answer
D. Bathochromic shift
6
Select the azo-dye :
Answer
B. Methyl orange
7
Which one of the following decays takes place in phosphorescence ?
Answer
B. T"\> Sg
8
Drugs which lower the body temperature in feverish conditions are called :
Answer
C. Antipyretics
9
Metal present in Vitamin B,) is ;
Answer
D. Co
[P.T.O.}
10
Compound which is used as a fixer in photography is :
Answer
A. Sodium thiosulphate
11
The most abundant inert gas in the atmosphere is :
Answer
B. Ar
12
The combustible material on the tip of safety matchstick is :
Answer
B. Antimony sulphide
13
The chief constituent of gobar gas is :
Answer
C. Methane
14
The sulphide ores of metal are concentrated by :
Answer
B. Froth floatation method
15
The metal that is used as a catalyst in the hydrogenation of oil is :
Answer
A. Ni
16
The gas responsible for Bhopal tragedy in 1984 was : :
Answer
D. Methyl isocyanate
17
The main cause of the energy radiation from the sun is :
Answer
B. Nuclear fusion
18
The number of radial nodes in 3s orbital is ; ‘ nie
Answer
C. Two
19
The bond order of O, molecule is :
Answer
D. p) 2
20
1 nanometer is :
Answer
B. 107°m
21
Emission of electrons from metal surfaces on exposure to radiation is called : |
Answer
C. Photoelectric effect
22
Quantum Theory of Radiation was put forward by :
Answer
A. Max Planck
23
jgAr“and joK* are examples of :
Answer
D. Isebars
24
Expression for average translational kinetic energy of an ideal gas/mole is :
Answer
B. (3/2) RT
25
Number of vibrational degrees of freedom of CO, molecule is : |
Answer
A. 4
26
The number of
Answer
D. electrons retained in Fe**
27
Which of the following has high electron affinity ?
Answer
B. Chlorine
28
Which one of the following is para magnetic ?
Answer
C. NO
29
The sugar which is present in milk is :
Answer
A. Lactose
30
The Brown Ring test is used for the detection of :
Answer
C. Nitrate
31
What is the Hybridisation of carbon in the singlet state of carbene ?
Answer
B. sp?
32
Diels-Alder reaction is an example for ___ cyclo addition.
Answer
D. (4+2)
33
A peptide bond is ;
Answer
A. -CO-NH-
34
Sugar when reacted with conc. H,SO, gives :
Answer
C. Carbon
35
Number of isoprene units in Diterpenoids is : y
Answer
D. 4
36
For soft soaps __ is used. :
Answer
C. KOH
37
Real gases deviate from ideal behaviour at conditions of :
Answer
D. High pressure and low temperature
38
The number of atoms contained within a face centered cubic unit cell is -
Answer
C. 4
39
To which point group H,O belongs ?
Answer
C. Cy
40
Select the ferrimagnetic substance.
Answer
A. FeO,
41
Which is true about chemisorption ?
Answer
D. All the above
42
How many number of molecules are present in 22.414 litres of hydrogen at STP ?
Answer
C. 6.022 x 1074
43
A property which progressively increases down a group in the periodic table is :
Answer
B. Strength as a reducing agent
44
Which of the following elements is a metalloid ?
Answer
C. Antimony
45
Hybridization of Be in BeCl, is :
Answer
A. sp
46
The heat change in a chemical reaction at constant pressure is :
Answer
B. AH
47
The pH of an aqueous solution is 5.2. Its pOH will be :
|
Answer
D. 8.8
48
Which of the following is true at equilibrium ?
Answer
B. Rates of the forward and backward reactions are equal
49
An acid buffer can be prepared by mixing solutions of :
Answer
C. CH,COONa and CH,COOH
50
Which of the following is a peptide hormone ?
Answer
A. Insulin
51
Which is a disaccharide ?
Answer
C. Sucrose
52
The central metal ion in chlorophyll is :
Answer
D. Mg?*
53
Which is not a sweetening agent ?
Answer
C. Lecithin
54
Pyrimidine contains __ nitrogen atoms.
Answer
B. 2
55
pH of blood is in the range :
Answer
A. 7.35-—7.45
56
The increasing accumulation of insecticides in higher organism is called :
Answer
D. Bio-accumulation
57
Radioactive decay follows _____ equation.
Answer
B. First order
58
Mixture of cone. HCi and anhydrous ZnCl, is known as :
Answer
B. Lucas reagent
59
In metallic conductors the electricity is carried by the movement of :
Answer
D. Electrons
60
In order to discharge 1 mole of AP* ion in electrolysis the quantity of electricity required
is:
1
Answer
C. 3 Faraday
61
Baking soda is :
Answer
A. NaHCO,
62
Flame test is not given by :
Answer
B. Be
63
Nitrolim is :
Answer
D. CaCN, and C
64
Which of the following hydride is electron deficient molecule ?
Answer
C. B₂H₆
65
Cryolite is chemically :
Answer
A. Sodium aluminium fluoride
66
The site of oxidation in an electrochemical cell is :
Answer
B. Anode
67
Which of the following can be used to measure pH ? |
Answer
D. All the above
68
A first order reaction requires 12 months for the concentration of the reactant to be reduced
to 25% of its original value. Its half life is ;
Answer
A. 6 months
69
Which is more effective in coagulating a negative solution ?
Answer
C. APT
70
The phase rule can be expressed mathematically as :
Answer
D. All
71
Zeolites are used as :
Answer
D. Ton exchangers
211/2014 10 A
q . 2 te
72
Two wave functions ψₙ and ψₘ are orthogonal if:
Answer
B. ∫ψₙ*ψₘ dτ = 0
73
The work done during the expansion of 1 mole of an ideal gas peeieet a constant external
pressure of 1 atm from a volume of 10 dm’ to a volume of 30 dm’ is ;
Answer
C. 20 dm atm
74
The expression for energy of the particle in a one dimensional box is :
Answer
A. n*h?/8ma?
75
The first organic compound synthesized in the laboratory is :
Answer
A. Urea
76
Cyclo alkanes have the general formula :
Answer
B. C,Hoy
77
The
Answer
A. 1.54A
78
Tetra ethyl lead is used as :
Answer
D. Petroleum additive
79
Benzene can be directly converted to toluene by : ‘
Answer
B. Friedel Craft's reaction
80
Acid catalyzed dehydration of alcohols takes place through :
|
Answer
A. carbocation intermediate
81
Electrophiles are :
Answer
C. Lewis acids
82
In Lassaigne’s test for nitrogen the blue colour is due to the formation of :
Answer
A. Ferric ferrocyanide
83
Chlorine present in an organic compound can be estimated by :
|
Answer
C. Q) Carius method
84
Lyman series of lines in hydrogen spectrum is formed during the transition of electrons from
| higher levels to : ;
|
Answer
A. First orbit
85
A metal used in storage battery is : :
Answer
D. Pb
86
CH₃−C≡CH and CH₃−CH₂−C≡CH form a pair of:
Answer
C. Homologues
87
The reaction used to prepare acetoacetic ester from ethyl acetate is known as :
|
Answer
B. Claisen condensation... 2 ott
88
Ziesel’s method is used to estimate group in organic compounds.
Answer
D. alkoxy
89
An inverse spinel from the following is :
Answer
B. Fe,O,
90
At triple point :
Answer
C. Both temperature and pressure are fixed
91
What type of colloid is milk ?
Answer
C. Emulsion
92
A system with zero degree of freedom is known as :
Answer
A. Invariant
93
Insects can walk on the surface of water due to :
Answer
B. Surface tension
94
Liquid crystals have :
Answer
C. The fluidity of a liquid and optical properties of a solid
95
CaCO₃ → CaO + CO₂ is an example of ________ component system.
Answer
D. 2
96
Which is a molecular crystal ?
Answer
B. Ice
97
Indicator used in the titration between oxalic acid and NaOH is :
Answer
D. Phenolphthalein
98
‘The wave number of a radiation having wavelength 4000 A is :
Answer
A. 25000 cm=?
99
pH of a 0.001 M HCI solution is :
Answer
C. 3
100
Ionic strength of 0.20 molal KC is :
Answer
B. 0.20
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