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Everyday Science Online MCQs Set 7 MCQs with Answers
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Pig iron is also called……..?
A. Cast iron
B. Steel
C. Wrought iron
D. Stainless steel
If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called………?
A. Annealing
B. Quenching
C. Tempering
D. Nitriding
The temperature at which two conjugate solutions change into one homogeneous solution is called……….?
A. Azeotrope
B. Conjugate temperature
C. Consolute temperature
D. Eutectic point
Who is the Father of Genetics?
A. Gregor Mendel
B. Alexendar
C. Darewin
D. Louis pasture
Mostly which gases found of the planet Jupiter?
A. Hydrogen
B. Chlorine
C. Hydrogen and Helium
D. Neon
Which of the following type of Coal, has maximum carbon content?
A. Peat
B. Lignite
C. Anthracite
D. Bituminious
Stethoscope was invented by ……. ?
A. Rene Laennec
B. Steven Sasson
C. Martin Cooper
D. Dave Hyatt
What is the molecular formula for Nitric acid …….. ?
A. HNO2
B. HNO3
C. HN2O2
D. H2NO4
The medical branch of science that deals with the study of skin, its functions, diseases, & treatment is …….. ?
A. Dermatology
B. Dormatology
C. Deontology
D. Dermatoglyphics
The scientific study of fingerprints is called ……… ?
A. Dactylography
B. Dactylology
C. Dactyliology
D. Dialectology
The discovery of neutron became very late because ……. ?
A. It does not carry any charge
B. It does not move
C. It is a fundamental particle
D. It is present in nucleus
The absolute value of charge on electron was determined by …….. ?
A. J.J.Thomson
B. Chadwick
C. Rutherford
D. Robert Millikan
What is the molecular weight of Ammonia (NH3) …….. ?
A. 17.031 g/mol
B. 18.031 g/mol
C. 19.031 g/mol
D. 27.033 g/mol
What is the molecular formula for Ammonia?
A. NH
B. NH2
C. NH3
D. NH4
What is the third most common gas found in the air we breathe …….. ?
A. Hydrogen
B. Neon
C. Carbondioxide
D. Argon
What is the Molecular Formula for Glucose ……. ?
A. C4H10O6
B. C5H11O6
C. C6H12O6
D. S6H12O6
Which of the following is a diverse group of hydrophobic molecules?
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic acids
What is the chemical formula for Sulfuric acid?
A. C2H6O
B. CaSO4
C. C2H4O2
D. H2SO4
The M.K.S. system was first introduced by ……… ?
A. Giorgi
B. Archimedes
C. Eienstein
D. Newton
A mixture of sand and naphthalene can be separated by …….. ?
A. Chromatography
B. Fractional distillation
C. Sublimation
D. None of these
What is the chemical formula for Sodium carbonate ……. ?
A. Na3CO2
B. CNa2O3
C. Na2CO3
D. Na3CO3
A ‘breath test’ used by traffic police to check drunken driving uses ….?
A. Turmeric on filter paper
B. Silica gel coated with silver nitrate
C. potassium permanganate-sulphuric acid
D. Potassium dichromatic-sulphuric acid
Brass gets discoloured in air because of the presence of which of the following gases in air …….. ?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen sulphide
Hydrogen bomb is based on the principle of …….. ?
A. Nuclear fusion
B. Artificial radioactivity
C. Natural radioactivity
D. Nuclear fission
Elements which have same number of protons but different number of neutrons are called as ……… ?
A. Isotopes
B. Isomers
C. Allotropes
D. Allomers
Proton number is denoted by symbol ………. ?
A. M
B. Z
C. P
D. A
When an acid reacts with a metal, which one of the following gas is usually liberated?
A. Ammonia Gas
B. Chlorine
C. Oxygen
D. Hydrogen gas
The protein Improtin-11, that was recently identified by scientists, is linked with causing which type of cancer?
A. Blood Cancer
B. Colorectal Cancer
C. Lung Cancer
D. Prostate Cancer
The study of X-rays and their medical applications is called ……… ?
A. Radiology
B. Raciology
C. Rheumatology
D. Rheology
Permanent hardness of water due to sulphate of metals can be destroyed by the use of …….. ?
A. Zeolites
B. Sulphonides
C. Lime
D. Nitrates
What is the Chemical formula of Zinc Hydroxide ……… ?
A. Zn(OH)2
B. ZNO2
C. Zn2(OH)3
D. ZnOH
The valency of carbon Atom is ………. ?
A. 1
B. 2
C. 3
D. 4
What is the Medical term for Fever?
A. HHypothermia
B. Pyrexia
C. Hypertension
D. Thermophilia
In context of environment, the term “dirty dozen” refers to …..?
A. 12 most harmful greenhouse gases
B. 12 ozone depleting substances
C. 12 persistent organic pollutants
D. None of the above
Only male frog produce croacking sound because ……… ?
A. Male frog can magnify their voice with the help of sound box.
B. Male frog have three pair of vocal cord
C. Female frog have larynx but no vocal cord
D. Female frog have no larynx
During rainy season Wooden doors are difficult to open or closure because of …….. ?
A. Plasmolysis
B. Imbibition
C. Osmosis
D. Diffusion
The Study of growth is called …… ?
A. Auxology
B. Autology
C. Avionics
D. Axiology
How many Number of eyes found in Earthworm?
A. One
B. Many
C. No eye
D. Two
Botany is also called ……. ?
A. Phytology
B. Phycology
C. Pedology
D. Plantophyta
The study of the structure of the body is called ……. ?
A. Anthropobiology
B. Anatomy
C. Aphnology
D. Apiology
What is the photometer?
A. Testing picture Quality
B. Measuring light Intensity
C. Measuring Size of Picture
D. Checking colors and Pictures
The only vitamin which can not be stored in human body?
A. Vitamin C
B. vitamin D
C. vitamin K
D. None of these
What is the scientific name of flying fish ?
A. Exocoetidae
B. Anoplopoma fimbria
C. Orthopsetta sordida
D. Xiphias gladius
The human heart is ……. ?
A. Ampullary Heart
B. Pulsating Heart
C. Myogenic Heart
D. Neurogenic Heart
Which of the following pairs belong to the category of cold blooded animals?
A. Snakes and birds
B. Bat and rats
C. Frog and snakes
D. Birds and monkey
What type of a mirror is used in anti-shop-lifting-devices?
A. Convex mirror
B. Concave mirror
C. Plane mirror
D. Both (b) and (c)
Why the colour of the Ocean appears blue?
A. Because the sunlight falling on it is scattered.
B. Because the sunlight falling on it is absorbed.
C. Because the sunlight falling on it is refracted.
D. Because the sunlight falling on it is reflected.
The distance between the optical centre of a convex lens and its principal focus is called its…….?
A. Focal Length
B. Radius of Curvature
C. Power
D. Magnification
The distance of a place South or North of equator is called……….?
Longitude
Latitude
Aptitude
None of these
A convex mirror always ……….. ?
A. Forms a real image
B. Forms a virtual image
C. Forms an inverted image
D. Produces a larger image
Which among the following types of lenses are prescribed by doctors for a patient suffering from astigmatism?
A. Cylindrical Lens
B. Concave Lens
C. Spherical Lens
D. Convex Lens
A doctor who specializes in diseases of the nose?
A. Rhinologist
B. Otologist
C. Pathologist
D. Podiatrist
What animal has longest gestation period of about 640 to 660 days or 95 weeks of any land animal ?
A. Blue Whale
B. Elephant
C. Opossum
D. None of these
Which of the following is a force?
A. Heat
B. Light
C. Magnetism
D. Kinetic
Dioptre is a unit of measurement for ………. ?
A. Current
B. Lens
C. Force
D. Focal Length
Transistor is a device that convert weak signal into……….?
A. small signal
B. strong signal
C. both
D. none
Second name of ethyl alcohol is………..?
A. Ethene
B. Ethanol
C. Propyle
D. none
Eletromagneticism is the branch of………..?
A. Chemistry
B. Physics
C. Both
D. None of these
Which one of the following non-metals is not a poor conductor of electricity?
A. Sulphur
B. Selenium
C. Bromine
D. Phosphorus
Which of the following is the world’s loudest bird ?
A. White bellbird
B. Peacock
C. Piha
D. None of the above
Which of the following is used in beauty parlours for hair setting?
A. Silicon
B. Chlorine
C. Sulphur
D. Phosphorus
Which of the following is not a chemical reaction ?
A. Burning of coal
B. Conversion of water into steam
C. Digestion of food
D. Burning of paper
Which of the following is commonly called a polyamide ?
A. Rayon
B. Nylon
C. Terylene
D. Orion
Which of the following protects the body against infectious disease and foreign invaders?
A. Leukocytes
B. Red blood cells
C. Endoplasmic reticulum (ER)
D. Golgi apparatus
What’s the Strongest Muscle in the Human Body based on its weight?
A. Hands
B. Masseter
C. Neck
D. Legs
Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ?
A. Microbiology
B. Micrology
C. Histopathology
D. Tavelogy
Name the animal which can live without water in its entire life?
A. Desert lizard
B. Camel
C. Kangaroo rat
D. Cuttlefish
NASA scientists have recently detected water vapor on which Jupiter’s moon?
A. Callisto
B. Europa
C. lo
D. None
Isotopes of an element have the same number of …….?
A. Neutrons
B. Protons
C. Electrons
D. Beta rays
“Gastric juice” is a secretion of the glands present in……..?
A. Gall Bladder
B. Kidneys
C. Stomach
D. None of these
Hepatitis C is a leading cause of………?
A. HIV
B. Diabetes
C. Chronic Liver disease
D. AIDS
Sound travels in air at an average speed of nearly…….. ?
A. 1257 miles per hour
B. 755 miles per hour
C. 330 miles per hour
D. None of these
When sound waves travel from air to water which of the following quantities remains unchanged?
A. Speed
B. Frequency
C. Intensity
D. Wavelength
Which of the following is both endocrine and exocrine gland?
A. thyroid
B. pancreas
C. parathyroid
D. all of these
All of the following organs in the human body are located both on the right and the left sides, except;………?
A. Lungs
B. Kidneys
C. Spleen
D. Eyes
The main cause of floods in the river is……….?
A. Heavy snowfall
B. Earthquakes
C. Deforestation
D. Construction of dams
Hyetology is the study of……….?
A. High pressure
B. Rainfall
C. High temperature
D. Earthquake
Birth control pills contain synthetic……..?
A. Sugars
B. Hormones
C. Vitamins
D. Minerals
Cover of the capsule is made of……….?
A. Paper
B. Polythene
C. Eggshell
D. Gelatin
What part of the brain controls thirst and hunger?
A. Thalamus
B. Hypothalamus
C. Aymgdala
D. None
Which of the following invention is oldest ?
A. Clock
B. Microscope
C. Barometer
D. Cycle
Which instrument is used to measure the power of electric circuit ?
A. Wavemeter
B. Viscometer
C. Wattmeter
D. None of these
Which waves are used in sonography?
A. Ultrasonic waves
B. Electromagnetic Waves
C. Fundamentals of waves
D. Transverse wave
Substance whose atoms can be split are known as ………. materials.
A. Fusionable
B. Fissionable
C. Combustible
D. None of these
“Green House Effect” means:…………?
A. Pollution
B. Prevention of ultraviolet rays
C. Trapping of Solar energy due to atmospheric carbon dioxide
D. D. None
Tropism mostly refers to as…….?
A. Bird migration
B. Directional growth of a plant
C. Longevity of animal species
D. Behavioral pattern of human
A seed can germinate in the absence of……….?
A. Oxygen
B. Light
C. Moisture
D. Temperature
Diamond is harder than Graphite because of………..?
A. Difference in crystalline Structure
B. Tetrahedral structure of diamond
C. Difference in layer of atoms
D. None of these
Which of these is a micronutrient of plants?
A. Oxygen
B. Nitrogen
C. Boron
D. Carbon
Which planet is called “red planet”?
A. Mars
B. Venus
C. Jupiter
D. Saturn
An example of rhizome is………?
A. Carrot
B. Tomato
C. Ginger
D. Garlic
Which metal is pure conductor of electricity?
A. Copper
B. Gold
C. Silver
D. lead
A colloidal system in which a liquid is dispersed into a liquid is called………?
A. Percipitate
B. Gel
C. Emulsion
D. Sol
Which of the following organisms releases molecular oxygen into water?
A. E.coli
B. Phytoplankton
C. Amoeba
D. Salmonella
The process of converting wet waste to manure is………..?
A. Metabolism
B. Conservation
C. Incineration
D. Composting
Which of the following pollutants in water causes “Minamata disease?
A. Methyl Mercury
B. Lead
C. Salmonella
D. Perchlorate
lightest metal is……….?
A. Lithium
B. Sodium
C. Magnesium
D. Aluminium
Which of the following is used in water purification?
A. Reverse Osmosis
B. Osmosis
C. Cytolysis
D. Turgor Pressure
A crescograph is a device for measuring the growth in ……….?
A. Micro Organism
B. Plants
C. Human
D. Pollution
……….. is a strong smelling agent added to LPG cylinders to detect leakage?
A. Nitrogen Peroxide
B. Ethyl Mercaptan
C. Carbon Monoxide
D. Sulphur Dioxide