Forensic Chemical Sciences QnA (FACT Plus 2022)

FACT and FACT Plus Exam 20 March 2022

Exam Name	FACT and FACT Plus Exam 20 March 2022
Test Date	20/03/2022
Test Time :	9:00 AM – 11:00 AM
Subject	Forensic Chemical Sciences (FACT Plus)

Contents

• Section I: Aptitude in Forensic Science.
• Section II: Forensic Chemical Science.

Section I: Aptitude in Forensic Science

Section II: Forensic Chemical Sciences

Q.51. Amatol contains

1. TNT and Ammonium Nitrate
2. TNT and RDX
3. TNT and PETN
4. TNT and Tetryl

Answer: 1. TNT and Ammonium Nitrate

Q.52. Components of R-D-X is:

1. 1- nitroguanidine
2. Trinitrotoluene
3. Cyclotrimethylene Trinitramine
4. Cyclotetramethylene tetranitramine

Answer: 3. Cyclotrimethylene Trinitramine

Q.53. NMR is tool to investigate

1. Nuclear structure
2. Reflecting effect of light
3. Electron structure
4. Scattering effect of light

Answer: 1. Nuclear Structure

Q.54. Psilocin and Psilocybin, which are naturally occurring Hallucinogen, are found in:

1. Mushroom
2. Ergot
3. Poppy
4. Coca

Answer: 1. Mushroom

Q.55. HMX contains.

1. Nitro-Glycerine
2. Ammonium Nitrate
3. Cyclotetra Methylene Tetranitramine
4. Cyclo-Trimethylene Tri-nitrate

Answer: 3. Cyclotetra Methylene Tetranitramine

Q.56. SEMTEX is a high explosive, which is a combination of the following:

1. PETN and RDX
2. Nitroglycerine and Ammonium Nitrate
3. Dynamite and ANFO
4. RDX and TNT

Answer: 1. PETN and RDX

Q.57. The substance that minimizes the effect of the poison is called

1. Sedative
2. Hallucinate
3. Emetics
4. Antidote

Answer: 4. Antidote

Q.58. The maximum value of delta-9 THC is found in

1. Flowering tops of the female plant
2. Leaves of the female plant
3. Fruits
4. Seeds

Answer: 1. Flowering tops of the female plant

Q.59. Which one is not cardiac poison?

1. Digitalis
2. Oleander
3. Aconite
4. Strychnine

Answer: 4. Strychnine

Q.60. Following detector in HPLC generates structural and molecular weight information about the eluted solute

1. Fluorescence detector
2. Electorchemical detector
3. RI detector
4. MS detector

Answer: 4. MS Detector

Q.61. Tetra Acetone Tetra Peroxide is also known as “Mother of Saitan”

1. Very difficult to detect after the explosion
2. Highly sensitive and can explode in workplace
3. None of these
4. Both a and b

Answer: 4. Both a and b

Q.62. Kerosene is a blend of

1. Aromatics
2. Naphthenes
3. Paraffins
4. All of these

Answer: 4. All of these

Q.63. Wet digestion method is not applied in case of

1. Ba
2. Cu
3. Hg
4. Zn

Answer: 3. Hg

Q.64. X- ray detectors are all, except:

1. Gas filled Detectors
2. Thermocouple
3. Scintillator
4. Geiger Counter

Answer: 2. Thermocouple

Q.65. Emission of radiation of higher wavelength after absorption of UV- Light is called

1. Diffraction
2. Interference Phenomena
3. Fluorescence
4. None of these

Answer: 3. Fluorescence

Q.66. Following is not improvised explosive:

1. Hand grenade
2. Pipe bomb
3. Booby trap
4. Letter bomb

Answer: 1. Hand Grenade

Q.67. One of the active ingredients of castor oil acts as toxin is.

1. Strychnine
2. Ricin
3. Morphine
4. Atropine

Answer: 2. Ricin

Q.68. In XRF spectrometry, the excitation source is

1. Neutron gun
2. X-ray tube
3. Proton gun
4. Electron gun

Answer: 2. X-Ray Tube

Q.69. Which of the following is not used as a detector in HPLC?

1. Electrochemical detector
2. Mercury Cadmium Telluride
3. Phototubes
4. Photomultiplier tubes

Answer: 2. Mercury Cadmium Telluride

Q.70. Following technique provides a unique fingerprint of a chemical structure

1. Visible spectrophotometry
2. UV spectrophotometry
3. IR spectrophotometry
4. NIR spectrophotometry

Answer: 3. IR Spectrophotometry

Q.71. NAA method was developed by

1. Piobert and Pascal
2. Hevesy and Levi
3. Henry and Pascal
4. Martin and Synge

Answer: 2. Hevesy and Levi

Q.72. The “Fingerprint” region of IR spectrum can be subdivided into the following except

1. Below 1000 cm^-1
2. 1350-1000 cm^-1
3. 1500-1350 cm^-1
4. Below 500 cm^-1

Answer: 4. Below 500 cm^-1

Q.73. 400 cm^-1 is equals to

1. 25000 nm
2. 2500 Å
3. 2500 nm
4. 250 nm

Answer: 1. 25000 nm

Q.74. Detector in FT-IR detects all the rays except

1. None of these
2. Rays of Intermediate phase
3. Rays in phase
4. Rays out of phase

Answer: 4. Rays out of phase

Q.75. Electrode less discharge lamp is used in

1. AAS
2. AES
3. X-ray Fluorescence Spectrometer
4. IR spectrometer

Answer: 1. AAS

Q.76. Symmetric stretching can be identifying by:

1. NMR
2. Raman
3. ESR
4. FT-IR

Answer: 2. Raman

Q.77. One of the followings produce toxic hypothermia:

1. Antidepressants
2. Opioids
3. Anticholinergics
4. Salicylates

Answer: 2. Opioids

Q.78. The average elimination or “burn off” rate of alcohol is approximately:

1. 0.15% w/v per hr.
2. 0.015% w/v per hr.
3. 0.5% w/v per hr.
4. 0.05% w/v per hr.

Answer: 1. 0.15% w/v per hr.

Q.79. Bernoulli’s Principle is used in

1. Vaporization
2. Molecular breaking
3. Ionization
4. Atomization

Answer: 4. Atomization

Q.80. In the analysis of poisons, the sequence of events in chronological order is

1. Group Tests, Tissue Homogenization, Extraction And Specific Tests
2. Tissue Homogenization, Extraction, Group Tests, Specific Tests
3. Extraction, Tissue Homogenization, Group Test And Specific Tests.
4. Extraction, Group Test, Tissue Homogenization And Specific Test

Answer: 2. Tissue Homogenization, Extraction, Group Tests, Specific Tests.

Q.81. The working of Polilight is based on ________ .

1. N.I.R. Radiation source
2. U.V. light source
3. Visible light
4. All of these

Answer: 4. All Of These

Q.82. The substance that causes vomiting is called

1. Antidote
2. Sedative
3. Hallucinogen
4. Emetic

Answer: 4. Emetic

Q.83. The flash point analysis is used to detect the following:

1. Copper sulphate
2. Explosives
3. Petroleum products
4. Vegetable poisons

Answer: 3. Petroleum Products

Q.84. A person was brought to police station by patrolling police from road side. He is talking irrelevant. He is having dry mouth with hot skin, dilated pupils, staggering gait and slurred speech. The most probable diagnosis is.

1. Dhatura poisoning
2. Carbamate’s poisoning
3. Organophosphorus poisoning
4. Alcohol intoxication

Answer: 1. Dhatura Poisoning

Q.85. The sample is kept in the beam of _________________ in AAS

1. Not on any electrode
2. Cathode
3. Anode
4. Any of the electrodes

Answer: 2. Cathode

Q.86. Ethanol is used as an antidote in methanol poisoning because:

1. Ethanol by-product is formic acid
2. Ethanol competes for ADH enzyme
3. Ethanol is cheap and easily available
4. Ethanol Competes for choline esterase enzyme

Answer: 2. Ethanol competes for ADH enzyme

Q.87. Proffin alcoholic drinks is

1. Equal to the percentage of alcohol content
2. 8% of alcoholic percentage
3. Twice the percentage of alcohol content
4. 12/13 parts of alcohol percentage

Answer: 3. Twice the percentage of alcohol content

Q.88. This is used in Molotov cocktail:

1. Phosphorous
2. Gasoline
3. Arsenic
4. Magnesium

Answer: 2. Gasoline

Q.89. The “magic angle” of NMR is at

1. 54.7 degrees
2. 90 degrees
3. 60.8 degrees
4. 120 degrees

Answer: 1. 54.7 degrees

Q.90. Auger effect is associated to emission of

1. IR rays
2. X rays
3. Gamma rays
4. UV rays

Answer: 2. X-Rays

Q.91. Optical components in UV spectrometer are made up of

1. Sodium-Halide Bromide
2. Plastic
3. Quartz
4. Glass

Answer: 3. Quartz

Q.92. Which of the following detector is the best for pesticide analysis by GC:

1. NPD
2. PDA
3. FID
4. MCT

Answer: 1. NPD

Q.93. Estimation of ethyl alcohol can be done quantitatively in the:

1. Urine
2. Saliva
3. Blood
4. Perspiration

Code:

1. a and c
2. a and b
3. b and c
4. c and d

Answer: 1. a and c

Q.94. Kozelka and Hine method is used for the quantitative estimation of

1. Ethyl alcohol
2. Cannabis
3. Opium
4. Cocaine

Answer: 1. Ethyl Alcohol

Q.95. Birefringent materials can be examined under which of the following:

1. TEM
2. SEM
3. Polarising microscope
4. Fluorescent microscope

Answer: 3. Polarising Microscope

Q.96. Hollow cathode lamp is used in the following

1. IR spectrometer
2. X-ray fluorescence spectrometer
3. AES
4. AAS

Answer: 4. AAS

Q.97. Ethanol is absorbed into blood from

1. Stomach and small intestine
2. Kidney and liver
3. Liver and large intestine
4. Stomach and large intestine

Answer: 1. Stomach and small intestine

Q.98. MCT detector is used in

1. FTIR Spectrometer
2. AAS
3. LC-MS
4. GC-MS

Answer: 1. FTIR Spectrometer

Q.99. A movable mirror is attached to the spectrophotometer in

1. NMR
2. UV
3. IR
4. AAS

Answer: 3. IR

Q.100. Club Drugs legally used by veterinarians as tranquilizer is called:

1. Morphine
2. Cocaine
3. Diazepam
4. Ketamine

Answer: 4. Ketamine

Q.101. A GC identifies accelerants by a chromatogram’s

1. Pattern
2. Peak Height
3. Peak Shape
4. Peak Length

Answer: 1. Pattern

Q.102. The following method is a non-destructive technique for ink identification.

1. UV-vis spectrometer
2. TLC
3. Video spectral analysis
4. Solubility test

Answer: 3. Video Spectral Analysis

Q.103. In SEM, the incident beam is focused by means of

1. Electromagnets
2. Slits
3. Lens
4. Mirrors

Answer: 1. Electromagnets

Q.104. NAA is based on

1. Spontaneous gamma emission
2. Beta emission
3. Delayed gamma emission
4. Both a and b

Answer:

Q.105. The best method to avoid aspiration of fluids during gastric lavage in a comatose patient is by:

1. Continuous suction of the fluid from the trachea
2. Introduction of a cuffed endotracheal tube before lavage
3. Putting the patient in the left lateral position
4. Putting the head of the patient at a lower level than his feet

Answer: 2. Introduction of a cuffed endotracheal tube before lavage

Q.106. The silica gel “G” contains ___________ as binder

1. Gypsum
2. Cobalt
3. Aluminium
4. Germanium

Answer: 1. Gypsum

Q.107. In a healthy middle-aged individual, a carbon monoxide blood saturation greater than____________ is considered fatal

1. 30 to 40 %
2. 5 to 10 %
3. 50 to 60 %
4. 10 to 20 %

Answer: 3. 50 to 60%

Q.108. Photoelectric effect has been discovered by

1. Issac Newton
2. Max plank
3. Albert Einstein
4. Thomas young

Answer: 3. Albert Einstein

Q.109. In trap cases, the pink colour of Phenolphthalein fades due to

1. Complex with Na₂CO₃
2. 2(4-Hydroxybenzoyle) Benzoic acid and phenol
3. Phenolic anhydride
4. Trichloro phenolphthalein

Answer: 2. 2(4-Hydroxybenzoyle) Benzoic acid and phenol

Q.110. Mass spectrometry required the sample to be in

1. Liquid state
2. Vapour state
3. Solid state
4. Semisolid state

Answer: 2. Vapour State

Q.111. Scalding is caused when liquid in contact has temperature above

1. 80° C
2. 50° C
3. 60° C
4. 44° C

Answer: 3. 60⁰c

Q.112. Atropine and oxime is used as an antidote for

1. Acid Poisoning
2. Organophosphorus Poisoning
3. Organochloride Poisoning
4. Carbamate Poisoning

Answer: 2. Organophosphorus Poisoning

Q.113. Non- volatile organic poison is extracted and isolated through

1. Distillation Method
2. Dry–Ashing Method
3. Ammonium Sulphate Method
4. Fresenium Bebo Method

Answer: 3. Ammonium Sulphate Method

Q.114. Radioactivity of a substance can be measured by

1. MCT detector
2. GM Counter
3. EC Counter
4. TCD detector

Answer: 2. GM counter

Q.115. Domestic kerosene is blue in colour due to

1. Coomassie blue dye
2. Anthracene dye
3. Eosine dye
4. Anthraquinone dye

Answer: 4. Anthraquinone dye

Q.116. Nebulizers are following except

1. Electro-thermal Vaporization
2. Ultrasound
3. Pneumatic
4. None of these

Answer: 4. None of These

Q.117. Minimum temperature to produce burn is

1. 54° C
2. 50° C
3. 40° C
4. 44° C

Answer: 4. 44° C

Q.118. The heavy metals can be easily detected by:

1. Electrophoresis
2. Atomic Absorption Spectroscopy
3. HPLC
4. Mass Spectrometry

Answer: 2. Atomic Absorption Spectroscopy

Q.119. Most suitable method for extraction and isolation of mercury is

1. Wet digestion method
2. Ammonium sulphate method
3. Dry ashing method
4. Fresenium bebo method

Answer: 4. Fresenium bebo method

Q.120. Which of the following is not Organophosphate:

1. Malathion
2. Chlorpyrifos
3. Prophenophos
4. Propoxur

Answer: 4. Propoxur