SCIENTIFIC ASSISTANT – CHEMISTRY – POLICE- FORENSIC SCIENCE LABORATORY

PROVISIONAL ANSWER KEY
Question Paper Code: 44/2016/OL
Category Code: 365/2014
Exam: Scientific Assistant
Medium of Question: English
Date of Test 26-04-2016
Alphacode A
Question1:-Who was the leader of Karivalloor struggle ?
A:-Accamma Cheriyan
B:-Kaumudi Teacher
C:-K. Devayani
D:-A. V. Kuttimalu Amma
Correct Answer:- Option-C
Question2:-The first female Judge in India
A:-Lalitha Prabhu
B:-Anna Chandy
C:-Margaret Pavamani
D:-Koothattukulam Mary
Correct Answer:- Option-B
Question3:-In Indian constitution Directive principles of state policy are adapted from which constitution ?
A:-Irish Constitution
B:-French Constitution
C:-Canadian Constitution
D:-United States Constitution
Correct Answer:- Option-A
Question4:-P.K. Thungan Committee related which of the following ?
A:-Planning Commission
B:-Panchayath Raj
C:-Federalism
D:-Judiciary
Correct Answer:- Option-B
Question5:-Savarna Jatha organised under the leadership of
A:-K. P. Kesava Menon
B:-T. K. Madhavan
C:-Mannath Padmanabhan
D:-K. Kelappan
Correct Answer:- Option-C
Question6:-Who wrote the drama ‘Pattabakki’ ?
A:-V. T. Bhattatiripad
B:-M. P. Bhattatiripad
C:-K. Damodaran
D:-N. Krishna Pillai
Correct Answer:- Option-C
Question7:-A parliamentary executive means
A:-Executive where there is a Parliament
B:-Executive elected by the Parliament
C:-Where the Parliament functions as the Executive
D:-Executive that is dependent on support of the Majority in the Parliament
Correct Answer:- Option-D
Question8:-Female Oriented Poverty Reduction Scheme is
A:-Kudumbashree
B:-Antyodaya Anna Yojana
C:-Mahila Samridhi Yojana
D:-Balika Samridhi Yojana
Correct Answer:- Option-A
Question9:-‘Pakanarcharitham’ a social drama written by
A:-Kelu Nair
B:-Kannan Nair
C:-P. Kunhiraman Nair
D:-K. A. Keraleeyan
Correct Answer:- Option-A
Question10:-The `12^(th)` South Asian Games will be conducted the city of
A:-Bangalore
B:-Guwahati
C:-Agarthala
D:-Patna
Correct Answer:- Option-B
Question11:-Indian Press Act passed in which year ?
A:-1908
B:-1909
C:-1910
D:-1911
Correct Answer:- Option-C
Question12:-Shahmal led the revolt against Brish at
A:-Kanpur
B:-Lucknow
C:-Barout
D:-Delhi
Correct Answer:- Option-C
Question13:-Who was elected the first Indian Women President of the UN General Assembly ?
A:-Sarojini Naidu
B:-Vijayalakshmi Pandit
C:-Suchetha Kripalani
D:-Indira Gandhi
Correct Answer:- Option-B
Question14:-The First Governor of Reserve Bank of India
A:-C. D. Deshmukh
B:-B. Rama Rao
C:-S. Jagannathan
D:-P. C. Bhattacharya
Correct Answer:- Option-A
Question15:-The Head Quarters of UNESCO
A:-Newyork
B:-Paris
C:-Janeeva
D:-Britan
Correct Answer:- Option-B
Question16:-The first Head of the National Commission for women was
A:-Jayanti Patnaik
B:-Dr. V. Mohini Giri
C:-Mamata Sharma
D:-Lalitha Kumaramangalam
Correct Answer:- Option-A
Question17:-Who was founded the Akhila Thiruvithamcore Navika Thozhilali Sangam ?
A:-Chattambi Swamikal
B:-Sree Narayana Guru
C:-Dr. Velukutty Arayan
D:-Vagbhatananda
Correct Answer:- Option-C
Question18:-East India Association was established by
A:-Dadabhai Naoroji
B:-Surendranath Benarjee
C:-W. C. Benarjee
D:-Mahadev Govind Ranade
Correct Answer:- Option-A
Question19:-The first President of All India Muslim League was
A:-Nawab Salim Ullah Khan
B:-Aga Khan
C:-Maulana Muhammadali Jouhar
D:-Muhammad Ali Jinnah
Correct Answer:- Option-B
Question20:-The largest District in Kerala
A:-Idukki
B:-Malappuram
C:-Palakkad
D:-Ernakulam
Correct Answer:- Option-C
Question21:-Myrcene is a
A:-Monocyclic terpenoid
B:-Bicyclic terpenoid
C:-Acyclic terpenoid
D:-Sesqui terpenoid
Correct Answer:- Option-C
Question22:-Geometrical isomer of geraniol is
A:-Nerol
B:-Linalool
C:-Citranellol
D:-Citranellal
Correct Answer:- Option-A
Question23:-Gutta-Percha is
A:-cis-polyisoprene
B:-trans-polyisoprene
C:-cis-polyisobutylene
D:-trans-polyisobutylene
Correct Answer:- Option-B
Question24:-Which one of these is a quinoline alkaloid ?
A:-Nicotine
B:-Cocaine
C:-Atropine
D:-Cinchonine
Correct Answer:- Option-D
Question25:-Mercerised cotton is
A:-Cotton treated with NaOH
B:-Cotton treated with KOH
C:-Cotton treated with `HNO_(3)`
D:-None of these
Correct Answer:- Option-A
Question26:-Oil of winter green
A:-Acetyl salicylic acid
B:-Ethyl salicylate
C:-Methyl salicylate
D:-None of these
Correct Answer:- Option-C
Question27:-The temperature at which second virial coefficient of a gas is zero is
A:-Boyle temperature
B:-Critical temperature
C:-Boiling point
D:-Critical temperature
Correct Answer:- Option-A
Question28:-A crystal having unit cell dimensions, `a` `!=` `b` `!=` `c` , `alpha` `=` `beta` `=` `Gamma“=` 90° is
A:-Cubic
B:-Tetragonal
C:-Orthorhombic
D:-Monoclinic
Correct Answer:- Option-C
Question29:-Wavelength corresponding to maximum energy is inversely proportional to temperature. The law is
A:-Wein displacement law
B:-Stefan’s law
C:-Boltzmann law
D:-Rayleigh Jean’s law
Correct Answer:- Option-A
Question30:-NQR is observed in the region
A:-UV-Visible
B:-X-ray
C:-Microwave
D:-Radiofrequency
Correct Answer:- Option-D
Question31:-The ground term symbol of Lithinum atom
A:-`1_S_0`
B:-`2_S__(1/2)`
C:-`2_S_1`
D:-`3_S_1`
Correct Answer:- Option-B
Question32:-Optical rotation and circular dichroism together are known as
A:-Cotton effect
B:-ORD
C:-Frank Condon principle
D:-Stark effect
Correct Answer:- Option-A
Question33:-The intensity of rotational spectral line depends on
A:-Relative population of rotational levels
B:-Degeneracy of rotational level
C:-Both 1 and 2
D:-None of these
Correct Answer:- Option-C
Question34:-Symmetric top molecules have
A:-Two moments of inertia equal and third different
B:-All the three moments of inertia equal
C:-All the three moments of inertia different
D:-None of these
Correct Answer:- Option-A
Question35:-The vibrating stretching frequency of a diatomic molecule depends on
A:-Force constant
B:-Masses of two atoms
C:-Both 1 and 2
D:-None of these
Correct Answer:- Option-C
Question36:-Identify the spectra corresponds to the frequency 15000 `cm^-1`
A:-Visible
B:-IR
C:-NMR
D:-Microwave
Correct Answer:- Option-A
Question37:-Raman lines on the low frequency side of the excitation frequency are called
A:-Stokes lines
B:-Antistokes lines
C:-Rayleigh line
D:-None of these
Correct Answer:- Option-A
Question38:-The shift of an absorption maximum towards longer wavelength is known as
A:-Hypsochromic effect
B:-Bathochromic effect
C:-Hyperchromic effect
D:-Hypochromic effect
Correct Answer:- Option-B
Question39:-In Mossbauer spectroscopy, the main hyperfine interaction/s is/are
A:-Isomer shift
B:-Quadrupole splitting
C:-Nuclear Zeeman splitting
D:-All
Correct Answer:- Option-D
Question40:-A naturally occurring dye
A:-Indigo
B:-Malachite green
C:-Aniline yellow
D:-Methyl orange
Correct Answer:- Option-A
Question41:-An antimalarial drug is
A:-Chloramphenicol
B:-Pamaquin
C:-Equanil
D:-Veronal
Correct Answer:- Option-B
Question42:-Heat capacity of species is independent of temperature if it is
A:-Tetratomic
B:-Triatomic
C:-Diatomic
D:-Monatomic
Correct Answer:- Option-D
Question43:-Gold number gives
A:-The number of gold atoms present in 1g of gold
B:-The number of gold atoms required to coagulate 1g of the colloidal solution
C:-The number of gold atoms present in 1g of gold alloy
D:-None of these
Correct Answer:- Option-D
Question44:-Which of the following is incorrect ?
A:-Chemisorption is caused by bond formation
B:-Chemisorption doesnot extend beyond a monolayer
C:-Chemisorption is reversible
D:-Chemisorption increases with increase in temperature
Correct Answer:- Option-C
Question45:-Reversible adiabatic expansion of an ideal gas is an example of
A:-Isoenthalpic process
B:-Isoentropic process
C:-Isothermal process
D:-Isobaric process
Correct Answer:- Option-B
Question46:-Which of the following is a spontaneous process associated with negative entropy change ?
A:-Evaporation of a liquid
B:-Decomposition of `AgCIO_2`
C:-Dissolution of HCl gas in water
D:-Acid-base neutralization reaction
Correct Answer:- Option-C
Question47:-What happens to the equilibrium constant of a reaction if the stochiometric coefficient in the balanced chemical
equation is doubled ?
A:-Twiced
B:-Squared
C:-Halved
D:-No change
Correct Answer:- Option-B
Question48:-The maximum number of phases possessed by an invariant system consisting of three components is
A:-3
B:-2
C:-5
D:-4
Correct Answer:- Option-C
Question49:-The solution of the radial wave function of a hydrogen atom can be obtained from
A:-Legendre polynomial
B:-Associated laguerre polynomial
C:-Hermite polynomial
D:-Associated legendre polynomial
Correct Answer:- Option-B
Question50:-The number of `^13C_` signals in naphthalene is
A:-5
B:-2
C:-7
D:-3
Correct Answer:- Option-D
Question51:-Which one of the following shows the highest basicity ?
A:-`La(OH)_3`
B:-`Nd(OH)_3`
C:-`Eu(OH)_3`
D:-`Lu(OH)_3`
Correct Answer:- Option-A
Question52:-In the vibrational spectrum of `CO_2` , the number of fundamental vibrational modes common in both infrared
and Raman are
A:-3
B:-2
C:-1
D:-0
Correct Answer:- Option-D
Question53:-The electronegativity difference is highest for the pair
A:-Li, Cl
B:-K, F
C:-Na, Cl
D:-Li, F
Correct Answer:- Option-B
Question54:-The correct set of biologically essential element is
A:-Fe, Mo, Cu, Zn
B:-Fe, Cu, Co, Ru
C:-Cu, Mn, Zn, Ag
D:-Fe, Ru, Zn, Mg
Correct Answer:- Option-A
Question55:-The molecule that has `S_4` symmetry element is
A:-`C_6H_6`
B:-`CH_4`
C:-`CO_2`
D:-`C_2H_2`
Correct Answer:- Option-B
Question56:-Identify the point group of `PCl_5`
A:-`C_3_v`
B:-`C_3_h`
C:-`D_3_h`
D:-None of these
Correct Answer:- Option-C
Question57:-Which is an abelian group ?
A:-Cyclic group
B:-Acyclic group
C:-Square planar group
D:-Octahedral group
Correct Answer:- Option-A
Question58:-Which of the following molecules have center of symmetry ?
A:-`CH_4`
B:-`SO_2`
C:-`C_6H_6`
D:-`SF_4`
Correct Answer:- Option-C
Question59:-Sum of squares of the dimensions of the irreducible representation of a group will be equal to
A:-Order of the group
B:-Character of the group
C:-Square of the group
D:-None of these
Correct Answer:- Option-A
Question60:-The stable end product of Uranium series is
A:-`_83Bi^209`
B:-`_82Pb^206“`
C:-`_82Pb^207`
D:-`_82Pb^209`
Correct Answer:- Option-B
Question61:-Intersystem crossing is essential for
A:-Phosphorescence
B:-Fluorescence
C:-Photosensitisation
D:-Chemiluminescence
Correct Answer:- Option-A
Question62:-The lowest lattice energy among the following crystals is
A:-NaCl
B:-KCl
C:-RbCl
D:-CsCl
Correct Answer:- Option-D
Question63:-Improper rotation axis contains
A:-Reflection and refraction
B:-Rotation and reflection
C:-Inversion and refraction
D:-Center of symmetry and rotation
Correct Answer:- Option-B
Question64:-Which among the following state functions is an extensive property of the system ?
A:-Temperature
B:-Volume
C:-Viscosity
D:-Refractive index
Correct Answer:- Option-B
Question65:-The splitting of spectral lines in an electric field is called
A:-Zeeman effect
B:-Photoelectric effect
C:-Stark effect
D:-Thomson effect
Correct Answer:- Option-C
Question66:-Which is true about the isobars ?
A:-They have same mass number and same atomic number
B:-They have same mass number and different atomic number
C:-They have different mass number and same atomic number
D:-They have different mass number and different atomic number
Correct Answer:- Option-B
Question67:-`CO_2` is isostructural with
A:-`H_2O_`
B:-`NO_2`
C:-`H_2S_`
D:-`C_2H_2`
Correct Answer:- Option-D
Question68:-According to Wade’s rule, `C_2B_4H_8` adopts
A:-Closo-structure
B:-Arachno-structure
C:-Nido-structure
D:-Hypho-structure
Correct Answer:- Option-C
Question69:-Which is more basic ?
A:-Pyridine
B:-Pyrimidine
C:-Pyrrole
D:-Piperidine
Correct Answer:- Option-D
Question70:-Chloropicrin is
A:-`CH_3NO_2`
B:-`Cl_3CNO_2` ` `
C:-`CHCl_3`
D:-None of these
Correct Answer:- Option-B
Question71:-Which one of the following is a vat dye ?
A:-Alizarin
B:-Indigo
C:-Malachite green
D:-Martius yellow
Correct Answer:- Option-B
Question72:-Patterno-Buchi reaction is
A:-Rearrangement of `alpha`, `beta`-unsaturated ketone
B:-Photosensitisation of butadiene
C:-Photochemical oxidation
D:-Cycloaddition of carbonyl compound to alkene
Correct Answer:- Option-D
Question73:-An antiredeposition agent in detergents
A:-STPP
B:-CMC
C:-SDS
D:-Sodium perborate
Correct Answer:- Option-B
Question74:-p-azoxyanisole is an example of
A:-Semiconductor
B:-Super conductor
C:-Liquid crystal
D:-None of these
Correct Answer:- Option-C
Question75:-Which of the following will occur farthest downfield in `^1H`-`NMR` spectrum ?
A:-Benzene
B:-Ethyne
C:-Dimethyl ether
D:-Formaldehyde
Correct Answer:- Option-D
Question76:-One mole of sugar is dissolved in three mole of water. The relative lowering of vapour pressure is
A:-1/2
B:-1/3
C:-1/4
D:-1/5
Correct Answer:- Option-C
Question77:-Which one of the following solutions would produce maximum elevation in boiling point ?
A:-0.1M glucose
B:-0.2M sucrose
C:-0.1M“ `Ba“(NO_3_)_2`
D:-0.1M `MgSO_4`
Correct Answer:- Option-C
Question78:-Isotonic solutions have
A:-Same freezing point
B:-Same boiling point
C:-Same viscosity
D:-Same osmotic pressure
Correct Answer:- Option-D
Question79:-The metal ion present in phosphotransferase enzyme is
A:-Mg
B:-Fe
C:-P
D:-Ni
Correct Answer:- Option-A
Question80:-The number of metal-meta bonds present in `Cu_2“(RCOO)_4`.`2H_(2) O`
A:-1
B:-2
C:-4
D:-0
Correct Answer:- Option-A
Question81:-Which of the following is used as an anaesthetic ?
A:-`N_2“O`
B:-`NO`
C:-`N_2O_3`
D:-`N_2O_5`
Correct Answer:- Option-A
Question82:-Which of the following pairs has the highest difference in their first ionization energy ?
A:-Xe, Cs
B:-Kr, Rb
C:-Ar, K
D:-Ne, Na
Correct Answer:- Option-D
Question83:-The ligand in chromocene
A:-
B:-
C:-
D:-
Correct Answer:- Option-A
Question84:-Calculate the number of microstates for 5 identical particles with their occupation numbers(1, 2, 3) in three
states
A:-6
B:-12
C:-10
D:-720
Correct Answer:- Option-C
Question85:-The aggregation of surfactant molecules is known as
A:-Micelles
B:-Clustures
C:-Gel
D:-Colloid
Correct Answer:- Option-A
Question86:-In the Lindmann mechanism of unimolecular reactions, the observed order at very high pressure is
A:-0.5
B:-2
C:-1.5
D:-1
Correct Answer:- Option-D
Question87:-Which of the following is not a fermion ?
A:-Proton
B:-Electron
C:-Neutron
D:-Photon
Correct Answer:- Option-D
Question88:-An aqueous solution of NaCl and HCl is exactly neutralized by an aqueous NaOH solution. The number of
components in the final mixture is
A:-1
B:-2
C:-3
D:-4
Correct Answer:- Option-B
Question89:-The interplanar distance (A°) for a (100) plane in a cubic structure with the lattice parameter of 4A° is
A:-1
B:-2
C:-4
D:-8
Correct Answer:- Option-C
Question90:-The hetero cyclic ring present in the aminoacid histidine is
A:-Pyridine
B:-Tetrahydropyrrol
C:-Indole
D:-Imidazole
Correct Answer:- Option-D
Question91:-The biosynthetic precursor of cholesterol is
A:-Shikimic acid
B:-Mevalonic acid
C:-Gutaric acid
D:-Cinnamic acid
Correct Answer:- Option-B
Question92:-In the IR spectrum, the absorption band due to carbonyl group in phenyl acetate appears at
A:-1760`cm^-1`
B:-1800`cm^-1`
C:-1710`cm^-1`
D:-1660`cm^-1`
Correct Answer:- Option-A
Question93:-The compound that will behave as an acid in liquid HF is
A:-`CH_3` `COOH`
B:-`HNO_(3)`
C:-`BF_(3)`
D:-`H_(2)SO_(4)`
Correct Answer:- Option-C
Question94:-Among the oxides of nitrogen, `N_(2)“O_(3)` , `N_(2)“O_(4)` and `N_(2)“O_(5)`, the compound(s) having N-N
bond is/are
A:-`N_(2)O_(4) and N_(2)O_(5)`
B:-`N_(2)O_(3) and N_(2)O_(5)`
C:-`N_(2)O_(3) and N_(2)O_(4)`
D:-`N_(2)O_(5)` `only`
Correct Answer:- Option-C
Question95:-A triclinic crystal is
A:-`KNO_(3)`
B:-`CuSO_(4).5H_(2)` `O`
C:-`NaCl`
D:-`CsCl`
Correct Answer:- Option-B
Question96:-The liquid crystals have
A:-Properties of supercooled liquids
B:-Properties of amorphous solids
C:-The fluidity of a liquid and optical properties of a solid
D:-None of these
Correct Answer:- Option-C
Question97:-X-ray diffraction does not give any structural information for
A:-Metallic solids
B:-Ionic solids
C:-Molecular solids
D:-Amorphous solid
Correct Answer:- Option-D
Question98:-Among the following, an example of a green synthesis is
A:-Synthesis of malachite green
B:-Friedel-Craft’s acylation of anisole with `Ac_(2)“ O`/anhydrous `AlCl_(3)`
C:-Jone’s oxidation of benzyl alcohol to benzoic acid
D:-Diel’s-Alder reaction of furan and maleic acid in water
Correct Answer:- Option-D
Question99:-Monosaccharide is not react with
A:-Tollen’s reagent
B:-Sodium bisulphate
C:-Acetic anhydride
D:-Hydroxylamine
Correct Answer:- Option-B
Question100:-Select the polar aprotic solvent from the following
A:-DMF
B:-DMSO
C:-THF
D:-All of these
Correct Answer:- Option-D