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Latest NFSU NFAT MSc Pharmaceutical Chemistry Exam Question (Objective Questions), MCQ in English

Subjects : Physics, Life Sciences, Environmental Science, Food Science and Forensic Science, Chemistry

Question Bank NFAT M.Sc Pharmaceutical Chemistry Exam - English
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Physics, Life Sciences, Environmental Science, Food Science and Forensic Science

Question 1Single Answer
What is a semiconductor’s conductivity compared to conductors and insulators?
  1. A
    Higher than both
  2. B
    Lower than both
  3. C
    Between conductors and insulators
  4. D
    Equal to insulators
Question 2Single Answer
What defines an intrinsic semiconductor?
  1. A
    Doped with impurities
  2. B
    Pure with equal electrons and holes
  3. C
    Only holes as charge carriers
  4. D
    No band gap
Question 3Single Answer
What impurity creates an n-type semiconductor?
  1. A
    Trivalent
  2. B
    Tetravalent
  3. C
    Pentavalent
  4. D
    Divalent
Question 4Single Answer
What happens in reverse bias of a p-n junction diode?
  1. A
    Current flows freely
  2. B
    Depletion region widens
  3. C
    Depletion region narrows
  4. D
    Diode conducts both ways
Question 5Single Answer
What are the majority charge carriers in a p-type semiconductor?
  1. A
    Electrons
  2. B
    Protons
  3. C
    Holes
  4. D
    Neutrons
Question 6Single Answer
What is the function of a p-n junction diode?
  1. A
    Blocks all current
  2. B
    Allows current in one direction
  3. C
    Amplifies signals
  4. D
    Stores voltage
Question 7Single Answer
What is a transistor’s primary use?
  1. A
    Storing charge
  2. B
    Amplifying or switching signals
  3. C
    Conducting heat
  4. D
    Emitting light
Question 8Single Answer
What is an extrinsic semiconductor?
  1. A
    Pure and undoped
  2. B
    Doped to enhance conductivity
  3. C
    No charge carriers
  4. D
    Always an insulator
Question 9Single Answer
What component is a basic building block of integrated circuits?
  1. A
    Resistor
  2. B
    Transistor
  3. C
    Capacitor
  4. D
    Inductor
Question 10Single Answer
What happens to a diode in forward bias?
  1. A
    Current is blocked
  2. B
    Depletion region widens
  3. C
    Current flows easily
  4. D
    Diode becomes an insulator
Question 11Single Answer
What does doping a semiconductor achieve?
  1. A
    Reduces conductivity
  2. B
    Increases charge carriers
  3. C
    Eliminates band gap
  4. D
    Makes it intrinsic
Question 12Single Answer
What is the band gap of a typical semiconductor like silicon?
  1. A
    Zero
  2. B
    Very large
  3. C
    Moderate
  4. D
    Negative
Question 13Single Answer
What is the primary source of energy for Earth’s biosphere?
  1. A
    Geothermal heat
  2. B
    Solar radiation
  3. C
    Nuclear energy
  4. D
    Chemical reactions
Question 14Single Answer
What molecule stores genetic information in cells?
  1. A
    Protein
  2. B
    Lipid
  3. C
    DNA
  4. D
    Carbohydrate
Question 15Single Answer
What process converts glucose into ATP in cells?
  1. A
    Photosynthesis
  2. B
    Cellular respiration
  3. C
    Transcription
  4. D
    Translation
Question 16Single Answer
What is the role of enzymes in biological reactions?
  1. A
    Store energy
  2. B
    Act as catalysts
  3. C
    Provide structural support
  4. D
    Transport oxygen
Question 17Single Answer
What organelle is the site of protein synthesis?
  1. A
    Nucleus
  2. B
    Mitochondrion
  3. C
    Ribosome
  4. D
    Golgi apparatus
Question 18Single Answer
What is the basic unit of life?
  1. A
    Atom
  2. B
    Molecule
  3. C
    Cell
  4. D
    Tissue
Question 19Single Answer
What gas is essential for aerobic respiration?
  1. A
    Nitrogen
  2. B
    Oxygen
  3. C
    Carbon dioxide
  4. D
    Hydrogen
Question 20Single Answer
What is the function of chlorophyll in plants?
  1. A
    Stores nutrients
  2. B
    Absorbs light for photosynthesis
  3. C
    Transports water
  4. D
    Protects against pathogens
Question 21Single Answer
What type of biomolecule are antibodies?
  1. A
    Carbohydrates
  2. B
    Proteins
  3. C
    Lipids
  4. D
    Nucleic acids
Question 22Single Answer
What process copies DNA into RNA?
  1. A
    Replication
  2. B
    Transcription
  3. C
    Translation
  4. D
    Mutation
Question 23Single Answer
What is the main component of cell membranes?
  1. A
    Phospholipids
  2. B
    Polysaccharides
  3. C
    Proteins
  4. D
    Nucleotides
Question 24Single Answer
What is the primary cause of global warming?
  1. A
    Deforestation
  2. B
    Greenhouse gas emissions
  3. C
    Ozone depletion
  4. D
    Soil erosion
Question 25Single Answer
What gas is most responsible for the greenhouse effect?
  1. A
    Oxygen
  2. B
    Nitrogen
  3. C
    Carbon dioxide
  4. D
    Argon
Question 26Single Answer
What is eutrophication caused by?
  1. A
    Excess nutrients in water
  2. B
    Air pollution
  3. C
    Soil degradation
  4. D
    Thermal pollution
Question 27Single Answer
What is the main source of acid rain?
  1. A
    Carbon monoxide
  2. B
    Sulfur dioxide and nitrogen oxides
  3. C
    Chlorofluorocarbons
  4. D
    Methane
Question 28Single Answer
What does the ozone layer protect against?
  1. A
    Infrared radiation
  2. B
    Ultraviolet radiation
  3. C
    Visible light
  4. D
    Gamma rays
Question 29Single Answer
What process recycles nutrients in ecosystems?
  1. A
    Combustion
  2. B
    Decomposition
  3. C
    Evaporation
  4. D
    Sedimentation
Question 30Single Answer
What is the main cause of biodiversity loss?
  1. A
    Climate change
  2. B
    Habitat destruction
  3. C
    Overfishing
  4. D
    Pollution
Question 31Single Answer
What type of pollution is caused by excessive noise?
  1. A
    Thermal
  2. B
    Chemical
  3. C
    Noise
  4. D
    Light
Question 32Single Answer
What is the goal of sustainable development?
  1. A
    Maximize resource extraction
  2. B
    Balance economic growth and environmental protection
  3. C
    Increase industrial output
  4. D
    Reduce population growth
Question 33Single Answer
What is biomagnification?
  1. A
    Increase in nutrient levels
  2. B
    Accumulation of toxins in higher trophic levels
  3. C
    Growth of microbial populations
  4. D
    Reduction in species diversity
Question 34Single Answer
What is the primary source of freshwater pollution?
  1. A
    Industrial waste
  2. B
    Agricultural runoff
  3. C
    Atmospheric deposition
  4. D
    Urban development
Question 35Single Answer
What nutrient is the primary source of energy in food?
  1. A
    Proteins
  2. B
    Carbohydrates
  3. C
    Vitamins
  4. D
    Minerals
Question 36Single Answer
What process preserves food by removing water?
  1. A
    Freezing
  2. B
    Dehydration
  3. C
    Canning
  4. D
    Pasteurization
Question 37Single Answer
What is the main cause of food spoilage?
  1. A
    High temperature
  2. B
    Microbial growth
  3. C
    Low pH
  4. D
    Excess oxygen
Question 38Single Answer
What is pasteurization used for?
  1. A
    Removing toxins
  2. B
    Killing harmful bacteria
  3. C
    Enhancing flavor
  4. D
    Increasing shelf life indefinitely
Question 39Single Answer
What type of fat is considered healthiest?
  1. A
    Saturated fat
  2. B
    Trans fat
  3. C
    Unsaturated fat
  4. D
    Cholesterol
Question 40Single Answer
What is the role of antioxidants in food?
  1. A
    Increase sugar content
  2. B
    Prevent oxidation and spoilage
  3. C
    Enhance protein content
  4. D
    Reduce water content
Question 41Single Answer
What is a common foodborne pathogen?
  1. A
    Salmonella
  2. B
    Glucose
  3. C
    Starch
  4. D
    Fiber
Question 42Single Answer
What does HACCP stand for in food safety?
  1. A
    Hazard Analysis and Critical Control Points
  2. B
    Health and Consumer Control Program
  3. C
    Hygiene and Contamination Check Plan
  4. D
    Hazard Assessment and Compliance Protocol
Question 43Single Answer
What nutrient is essential for muscle repair?
  1. A
    Carbohydrates
  2. B
    Proteins
  3. C
    Lipids
  4. D
    Sugars
Question 44Single Answer
What is the primary function of food additives?
  1. A
    Increase nutritional value
  2. B
    Enhance flavor, appearance, or shelf life
  3. C
    Reduce calorie content
  4. D
    Eliminate microbes
Question 45Single Answer
What is fermentation in food science?
  1. A
    Heating food to high temperatures
  2. B
    Microbial conversion of sugars to acids or alcohol
  3. C
    Removing moisture from food
  4. D
    Adding artificial colors
Question 46Single Answer
What vitamin is commonly added to milk?
  1. A
    Vitamin C
  2. B
    Vitamin D
  3. C
    Vitamin B12
  4. D
    Vitamin K
Question 47Single Answer
What is the primary goal of forensic science?
  1. A
    Develop new chemicals
  2. B
    Analyze evidence for legal investigations
  3. C
    Study biological ecosystems
  4. D
    Improve food safety
Question 48Single Answer
What technique identifies individuals based on genetic material?
  1. A
    Fingerprinting
  2. B
    DNA profiling
  3. C
    Ballistics analysis
  4. D
    Toxicology screening
Question 49Single Answer
What is the study of fingerprints called?
  1. A
    Serology
  2. B
    Dactyloscopy
  3. C
    Pathology
  4. D
    Entomology
Question 50Single Answer
What does forensic toxicology analyze?
  1. A
    Trace evidence
  2. B
    Drugs and poisons in the body
  3. C
    Firearm residues
  4. D
    Soil samples
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