Assistant Chemical Examiners Laboratory Answer Key 11/2019

hospital lab

Post: Assistant Chemical Examiners Laboratory, Sanitary Chemist
Department: Kerala Minerals and Metals, Kerala Water Authority, State Framing corporation of Kerala
Category Code: 343/2017, 364/2017, 442/2017, 568/2017
Question Paper: 11/19
Qualification: B Sc Chemistry
Date of Test: 01-03-2019


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  1. The emission of an α-particle and two β-particles in succession produces an    of the starting atom.
    • Isotope
    • Isobar
    • Isotone
    • Isomer

  2. The order of the C2V point group is
    • 3
    • 4
    • 1
    • 2

  3. Among CO, NO, HCl and CO2, that which will not yield a microwave spectrum is
    • CO
    • NO
    • HCl
    • CO2

  4. The number of normal modes of vibration of C6H6 molecule is
    • 30
    • 36
    • 31
    • 35

  5. The π donor ligand in Ziese's salt is
    • Chlorine
    • Ethylene
    • Acetylene
    • Carbonyl

  6. The number of signals exhibited by the protons of TMS in its NMR spectrum is
    • 2
    • 1
    • 3
    • 4

  7. The hybridization of Nitrogen atom in NH3
    • sp3
    • sp2d
    • sp3d
    • sp

  8. Radioactive disintegration follows __________  order kinetics.
    • First order
    • Zero order
    • Second order
    • Third order

  9. The emission of radiant energy after a time lag after its absorption by a substance is called
    • Fluorescence
    • Phosphorescence
    • Vibrational relaxation
    • Inter system crossing

  10. The ionic character of LiCl, NaCl, KCl, RbCl and CsCl follows the order
    • LiCl > NaCl > KCl > RbCl > CsCl
    • LiCl < NaCl < KCl < RbCl < CsCl
    • LiCl = NaCl < KCl =RbCl < CsCl
    • NaCl > LiCl > KCl > RbCl > CsCl

  11. Which among the following is the optical property of colloid?
    • Brownian movement
    • Electrophoresis
    • Tyndal Effect
    • Electro osmosis

  12. How many isoprene units are present in a monoterpenois?
    • 3
    • 4
    • 2
    • 1

  13. The oxidation number of Cr in Cr2O72- is
    • +7
    • +6
    • +5
    • +4

  14. The reagent used in Benzoin condensation
    • OH-
    • EtO-
    • CN*
    • CH3COO-

  15. Which indicator is used in Iodometric titration?
    • Eriochrome Black T
    • Starch solution
    • N-Phenyl anthranilic acid
    • Methyl Orange

  16. The ligand denticity of EDTA is
    • 6
    • 5
    • 4
    • 3

  17. The number of particles per unit cell of BCC is
    • 4
    • 2
    • 1
    • 6

  18. The total number of crystal systems present is
    • 8
    • 32
    • 7
    • 31

  19. The principle of liquid-gas chromatography is
    • Adsorption
    • Absorption
    • Partition
    • None of these

  20. Which metal ion is present in Vitamin B-12?
    • Cobalt
    • Nickel
    • Iron
    • Copper

  21. How many oxygen molecules are carried by a single Haemoglobin molecule?
    • 4
    • 3
    • 2
    • 1

  22. How many significant figures are there in the quantity 0.0063g?
    • 3
    • 4
    • 2
    • 1

  23. How many peaks are observed in the IR spectrum of CO2 molecule?
    • 3
    • 4
    • 2
    • 1

  24. Asbestos is an example of
    • Cyclic
    • Sheet silicate
    • Chain
    • Three dimensional

  25. Rutile is an ore of
    • Titanium
    • Iron
    • Aluminium
    • Zinc

  26. The highest oxidation state shown by the transition element is
    • +7
    • +8
    • +6
    • +5

  27. The intense violet colour of KMnO4 is due to    transition.
    • Charge transfer
    • d-d transition
    • f-f transition
    • Lanthanide contraction

  28. What is the CFSE for an octahedral high spin d4 system?
    • —12Dq
    • —6Dq
    • —24Dq
    • —18Dq

  29. Which one of the following metal carbonyls does not obey the EAN rule?
    • Ni(CO)4
    • Fe(CO)5
    • Cr(CO)6
    • V(CO)6

  30. The co-ordination number of iron in haemoglobin
    • 4
    • 5
    • 6
    • 7

  31. What designation is given to a sublevel having n=4, l=1?
    • 4p
    • 4s
    • 4d
    • 4f

  32. Be shows a diagonal relationship with
    • Al
    • Mg
    • Si
    • Na

  33. The state of hybridisation of Be in BeF2
    • sp3
    • sp2d
    • sp3d
    • sp

  34. But-l-ene can be converted to butane by reaction with
    • Pd/H2
    • Zn/HC/
    • Sn-HC/
    • Zn-Hg

  35. Which of the following compounds show geometrical isomerism?
    • Cyclopropane
    • Cyclobutane
    • 1,2-dimethylcyclopropane
    • None of these

  36. Which of the following compounds is aromatic?
    • Cyclobutadiene
    • Cyclooctatetraene
    • Cyclopropene
    • Cyclopentadienyl anion

  37. The monomer of natural rubber is
    • 2-methyl- 1 ,3-butadiene
    • 1 ,3-butadiene
    • 1,3-pentadiene
    • 2-methyl- 1 ,3-pentadiene

  38. Which alkaloid is present in Hemlock seed?
    • Coniine
    • Quinine
    • Piperine
    • Morphine

  39. Sea water will boil at a temperature
    • Higher than pure water
    • Lower than pure water
    • Same as that of pure water
    • Cannot be predicted

  40. Producer gas is a mixture
    • CO+H2
    • CO+H20
    • CO+N2
    • C0+02

  41. For a spontaneous process the free energy change should be
    • Positive
    • Negative
    • Either positive or negative
    • Zero

  42. A system which can exchange neither energy nor matter with surroundings is called
    • Open system
    • Closed system
    • Isolated system
    • Independent system

  43. Vibrational spectra will be obtained by the absorption of :
    • Microwave radiation
    • IR radiation
    • Ultraviolet radiation
    • Visible radiation

  44. Which point group does CO2 molecule belongs to?
    • Dαh
    • C3v
    • C2h
    • Cαv

  45. Which one of the following is a Zn containing enzyme?
    • Cytochrome P-450
    • Tyrosinase
    • Alcohol dehydrogenase
    • Cytochrome oxidase

  46. The alkaloid used as an antimalarial drug :
    • Atropine
    • Cocaine
    • Quinine
    • Coniine

  47. The heat of neutralisation when a strong acid is neutralised by a strong base :
    • —57 kJ/mole
    • 57 Cals/mole
    • —57 J/mole
    • —57 k.Cals/mole

  48. Which defect causes a decrease in density?
    • Schottky
    • Frenkel
    • Metal excess
    • F-centre

  49. The radius ratio of octahedral void is
    • 0.414
    • 0.225
    • 0.0414
    • 0.0225

  50. The pH of a 0.001 M HCl solution is :
    • 2
    • 3
    • 4
    • 1

  51. How many signals would be expected in the NMR spectrum of (CH3)3CCl?
    • One signal
    • Two signal
    • Three signal
    • Nine signal

  52. The monomer of Orlon :
    • Formaldehyde and phenol
    • Ethylene glycol
    • Vinyl cyanide
    • Adipicacid and hexamethylene diamine

  53. Which of the following is a Nitro dye?
    • Methyl orange
    • Aniline yellow
    • Martius yellow
    • Methyl blue

  54. Which one is the strongest base among the following?
    • CH3NH2
    • (CH3)2NH2
    • NH3
    • (CH3)3NH2

  55. Aspirin is
    • Acetyl salicylic acid
    • Ethoxy benzoic acid
    • Methoxy benzoic acid
    • Acetyl oxalic acid

  56. Which acid is used for cleaning glass wares in the laboratory?
    • Sulphuric acid
    • Hydrochloric acid
    • Nitric acid
    • Chromic acid

  57. Cellulose is a linear polymer of :
    • α-D-glucose
    • β-D-glucose
    • D-fructose
    • Sucrose

  58. Rickets is caused by the deficiency of :
    • Vitamin-A
    • Vitamin-B
    • Vitamin-D
    • Vitamin-K

  59. The —COOH group in carboxylic acid can be replaced by H atom by :
    • Zn and HCl
    • H2 with Ni
    • Sodalime
    • LiAlH4

  60. Barbituric acid and its derivatives are well known
    • Antiseptics
    • Antipyretics
    • Tranquilizers
    • Analgesics

  61. The isomers that are interconverted through rotation around a single bond are called :
    • Epimers
    • Anomers
    • Enantiomers
    • Conformations

  62. Maleic acid and fumaric acid are the forms of :
    • Chain isomers
    • Optical isomers
    • Geometrical isomers
    • Epimers

  63. In contact process for the manufacture of sulphuric acid, the catalyst is :
    • Finely divided iron
    • Nickel powder
    • LiAlH4
    • V2O5

  64. BF3 is an acid according to
    • Arrhenius concept
    • Bronsted-Lowry concept
    • Ostwald
    • Lewis concept

  65. How many coulombs of electricity are required to produce 20.0g of calcium from molten CaCl2?
    • 57900 C
    • 96500 C
    • 10800 C
    • 48250 C

  66. The cell constant of a cell is equal to :
    • a/I
    • I/a
    • a-I
    • I-a
    Question Error

  67. The reduction potential of two half cells Mg2+/Mg and Cue2+/Cu are —2.37 V and +0.34 V respectively. The cell potential is
    • —2.03 V
    • 2.71 V
    • 1.36 V
    • 2.3 V

  68. At equilibrium state :
    • ΔG is positive
    • ΔH is negative
    • ΔG is zero
    • ΔH is positive

  69. The heat absorbed by the system at constant pressure is
    • ΔE
    • ΔH
    • ΔG
    • ΔS

  70. How many unpaired electrons are present in Cu+ ion?
    • 2
    • 1
    • 0
    • 3

  71. According to Hund's rule, the number of unpaired electrons in nitrogen atom will be
    • 2
    • 1
    • 5
    • 3

  72. Which type of isomerism is shown by [Co(NH3)5NO2]Cl?
    • Ionization
    • Linkage
    • Co-ordination
    • Geometrical

  73. Which one is a homopolymer?
    • PVC
    • Nylon 6
    • Nylon 6,6
    • Terylene
    Question Error

  74. Three letters ABC can be arranged in _____ number of ways.
    • 6
    • 4
    • 8
    • 12

  75. The internuclear distance remains constant during electronic excitation. This assumption is :
    • Morse
    • Huckel rule
    • Born Oppenheimer
    • Frank Condon

  76. A bond stretching frequency around 1700cm-1 is due to
    • C=N
    • C-Cl
    • C=O
    • C=C

  77. Which of the following is an auxochrome?
    • -NH2
    • - N=N-
    • -C=C-
    • - NO2

  78. For phenol-water system, the critical solution temperature is
    • 65.1 °C
    • 68.1 °C
    • 76.2 °C
    • 39.5 °C

  79. a-helical structure refers to the    structure of protein.
    • Primary
    • Secondary
    • Tertiary
    • Quaternary

  80. Bhopal Tragedy is due to :
    • Ethyl isocyanate
    • Propyl isocyanate
    • Phenyl isocyanate
    • Methyl isocyanate

  81. Which is the largest News Agency in the World?
    • Associated Press
    • Telam
    • Tanjug
    • Press Trust of India

  82. The Cyclone affected India, Sri Lanka and the Maldives in November 2017 :
    • BOB06
    • Vardah
    • Ockhi
    • Hudhud

  83. In the Census of 2011 the Male literacy rate in India
    • 65.46
    • 74.04
    • 81.02
    • 82.14

  84. The famous Hajjur Inscription was issued by the Ay king Karunandadakkan in the year
    • AD 999
    • AD 1000
    • AD 974
    • None of these

  85. The Prime Minister Narendra Modi launched the Programme on 2nd Oct., 2014 to make clean India :
    • Nirmal Bharat Programme
    • Swachh Bharat Abhiyan
    • Make in India
    • Saansad Adarsh Grama Yojana

  86. The first Greek Tennis player to win an ATP World Tour Title of Stockholm Open
    • Ernest Gulbis
    • Rafael Nadal
    • Stefanos Tsitsipas
    • Roger Federer

  87. "Mandan Muthappa" is a character created by
    • Thoppil Bhasi
    • Vaikkom Muhammed Bhasheer
    • Thakazhi Sivasankara Pillai
    • MT Vasudevan Nair

  88. The Cabinet Mission came to India to discuss transfer of power to India on
    • 24th March, 1946
    • 22nd March, 1942
    • 9th August, 1942
    • 12th August, 1945

  89. The winner of Dadasaheb Phalke Award 2018
    • Kasinathuni Viswanath
    • Manoj Kumar
    • Shashi Kapoor
    • Vinod Khanna

  90. Who was the founder of All Travancore Muslim Mahajan Sabha?
    • Vakkom Maulavi
    • P.K. Khadeeja
    • Mujeeb Rahman Kinalur
    • None of these

  91. The book "Poikayil Yohannan" was written by
    • V.V. Shanthakumar
    • Kumaran
    • M.R. Renukumar
    • M.K. Sanu

  92. The winner of Kendra Sahithya Academy Award 2017 for his novel "Daivathinte Pusthakam"
    • Prabha Varma
    • K.P. Ramanunni
    • K.R. Meera
    • R. Narayana Panicker

  93. Who was the first woman Secretary General of Rajya Sabha?
    • Snehlata Shrivastava
    • Kiran Bedi
    • Ramadevi
    • Kamala Beniwal
    Snehlata Shrivastava - First woman Secretary General of the Lok Sabha

  94. International Day for preventing the exploitation of Environment in War and Armed conflict
    • November 11
    • November 6
    • November 5
    • November 1

  95. The Environment Protection Act was passed in the year
    • 1988
    • 1968
    • 1989
    • 1986

  96. The place where 27th Fusion Energy Conference (FEC 2018) held at
    • Gujarat
    • Delhi
    • Maharashtra
    • Kerala

  97. Who leads the Revolt of 1857 at Lucknow?
    • Begam Hazrat Mahal
    • Kunwar Singh
    • Rani Lakshmi Bai
    • Khan Bahadur Khan

  98. The incident prompted Gandhi to call off the Non-cooperation Movement :
    • Wagon Tragedy
    • Jallianwalla Bagh
    • Chauri Chaura Incident
    • Khilafat Movement

  99. The most important coastal port town of Kerala during the Sangam Period :
    • Nelkinda
    • Quilon
    • Kozhikode
    • Muziris

  100. The social reformer who organized Kallumala Agitation in Kerala
    • K. Kelappan
    • Ayyankali
    • Mannath Padmanabhan
    • Vaikunda Swamikal

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3 comments

  1. Q 13. Snehalatha sreee vasthava

    ReplyDelete
  2. Snehlata Shrivastava, First woman Secretary General of the Lok Sabha

    ReplyDelete
  3. Welcome to the party of my life here you will learn everything about me. FUB-AKB48

    ReplyDelete