Q 1
Which of the following is the basic characteristic of a living organism?
A. Ability to move
B. Ability to reproduce
C. Ability to eat
D. Ability to breath
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Everyday Science MCQs in topical order.
Everyday Science MCQs from biology, physics, chemistry, environment and general science.
6245
Total MCQs
1589
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1
Biology
Q 2
Name the bacteria developed by Australian scientists to prevent dengue fever by infecting the dengue mosquito with that bacterium which halves its lifespan?
A. Arun Shourie
B. Dominique Lapierre
C. Wolbachia bacterium
D. Salmanon Rush
Q 3
Of the following items, tell which one is present in stomach:
A. Gastric juice
B. Optic nerve
C. Sperm
D. Dandruff
Q 4
Of the following human muscles, tell which one is of thigh
A. Deltoid
B. Trapezius
C. Vastus externs
D. Biceps
Q 5
What name is given to the stiffening of the body after death?
A. Livor mortis
B. Algor mortis
C. Putrefaction
D. Rigor mortis
Q 6
The most abundant organic molecules in living organisms are?
A. proteins
B. lipids
C. sugars
D. starches
Q 7
Antibodies are chemicals that are?
A. produced by the body in response to an antigen
B. synthesised from carbohydrates
C. non-specific
D. transported by red blood cells
Q 8
The normal chromosome number in humans is:
A. 23
B. 43
C. 46
D. 48
2
Physics
Q 1
Why does a hydrogen balloon rise in air?
A. Because hydrogen is lighter than air
B. Because its weight is less than the weight of air that it displaces
C. Both (A) and (B)
D. None of above
Q 2
Why does the electric bulb break with a bang?
A. It is the breaking of the glass that creates this sound
B. Because the air rushes to fill the partial vacuum inside
C. Both (A) and (B)
D. None of above
Q 3
Mercury is used in thermometers because.
A. It is cheaply available
B. It is the only metal which is liquid at ordinary room temperature
C. It uniformly spreads and does wet the walls of the thermometer
D. None of above
Q 4
Why does the smoke in the atmosphere rise in curls?
A. Due to atmospheric resistance at different levels
B. Owing to the air current
C. Both (A) and (B)
D. None of above
Q 5
Why are the mountains cooler than the plains?
A. Sylvan surrounding and less industrial pollution make mountain cooler than the plains
B. Because there is less oxygen at the mountains
C. Being less dense on account of absence of dust particles, etc., the air of the mountains does not
Q 6
The speed of light is approximately:
A. 3 × 10⁸ m/s
B. 3 × 10⁶
C. 3 × 10⁴
D. 1 × 10⁵
Q 7
The electron was first identified by ___
A. Ernest Rutherford
B. Niels Bohr
C. James Chadwick
D. J.J. Thomson
Q 8
If there were no atmosphere, what would be the colour of the sky?
A. Black
B. Red
C. Blue
D. White
3
Chemistry
Q 1
The process of bleaching by chlorine is called
A. Decomposition
B. Oxidation
C. Reduction
D. Substitution
Q 2
Which among the following non-metals is a liquid?
A. Bromine
B. Carboji
C. Phosphorus
D. Sulphur
Q 3
Which of the following statements about the physical properties of metals is not correct?
A. All metals are solid except mercury
B. Most of the metals are hard except sodium and potassium
C. They are not malleable
D. Most of the metals are ductile.
Q 4
Which of the following are produced by the electrolysis of brine?
A. Chlorine and sodium
B. Chlorine and sodium hydroxide
C. Chlorine, hydrogen and sodium hydroxide
D. Hydrogen and chlorine
Q 5
What are the most common elements present in the earth's crust?
A. Oxygen, iron and potassium
B. Oxygen, iron and silicon
C. Silicon, aluminium and oxygen
D. Silicon, iron and magnesium.
Q 6
The chemical symbol of gold is:
A. Ag
B. Au
C. Fe
D. Cu
Q 7
What name is given to a mixture of bicarbonate of soda and tartaric acid used in cooking?
A. Baking powder
B. Baking soda
C. Yeast
D. Cream of tartar
Q 8
Which gas can accumulate in poorly ventilated buildings?
A. Xenon
B. Hydrogen
C. Radon
D. Helium
4
Universe
Q 1
Which planet takes the largest time to go once around the Sun?
A. Uranus
B. Jupiter
C. Neptune
D. Pluto
Q 2
A 'black hole' is a body in space which does not allow any radiation to come out. This property is due to its _____
A. Very small size
B. Very large size
C. Very high density
D. Very low density
Q 3
Which of the following planets is called evening star?
A. Mars
B. Mercury
C. Venus
D. Jupiter
Q 4
What is the rank of the earth in the solar system in terms of size?
A. Third
B. Fourth
C. Fifth
D. Sixth
Q 5
The planet with the shortest rotation time around its axis is _____
A. Mercury
B. Jupiter
C. Earth
D. Pluto
Q 6
The planets are kept in motion in their respective orbits by the _____
A. Rotation of the sun on its axis
B. Gravitation and centrifugal forces
C. Great size and spherical shape
D. Rotation and the density of the planets
Q 7
The theory that refers to an explosion about 10 to 15 billion years ago, which most astronomers believe to be the origin of the Universe, is called _____
A. The Red Shift Theory
B. Relativity Theory
C. Big Bang Theory
D. Titanic Theory
Q 8
Operation Path Finder was a mission to _____
A. Sun
B. Moon
C. Mars
D. Venus
5
Astronomy
Q 1
Excluding the moon, the celestial object which appear brightest in the sky
A. Polestar
B. Jupiter
C. Venus
D. Sirius
Q 2
Which planet is nearest to Earth?
A. Venus
B. Mars
C. Mercury
D. Jupiter
Q 3
Who invented the telescope?
A. Galileo Galilei
B. Isaac Newton
C. Johannes Kepler
D. Nicolaus Copernicus
Q 4
The fastest rotating planet is?
A. Jupiter
B. Saturn
C. Earth
D. Neptune
Q 5
The sun is a type of?
A. Star
B. Planet
C. Comet
D. Asteroid
Q 6
The branch of science dealing with space is called?
A. Astronomy
B. Astrology
C. Geology
D. Cosmology
Q 7
Which planet is known as the morning star?
A. Venus
B. Mars
C. Mercury
D. Jupiter
Q 8
Which planet is called the Red Planet?
A. Mars
B. Venus
C. Jupiter
D. Mercury
6
Diseases
Q 1
TB affects which organ?
A. Kidneys
B. Heart
C. Lungs
D. Liver
Q 2
Disease beri beri is because of
A. Lack of green vegetables in diet
B. Use of milled rice
C. Deficiency of calcium in bones
D. Poor use of citrus fruits
Q 3
Cataract is a disease which is due to
A. A defect in the optic nerve
B. Inflammation in the eye
C. Opacity of cornea
D. Opacity of lens
Q 4
Which of the following female mosquito is the cause of Dengue fever?
A. Aedes aegyptis
B. Anophilles
C. Barinohils
D. None of these
Q 5
Hepatitis is a disease of which of the following organ?
A. Heart
B. Liver
C. Lungs
D. brain
Q 6
Primarily, which one of the following systems of the body is attacked by the HIV?
A. Cardiovascular
B. Immune
C. Respiratory
D. Reproductive
Q 7
What type of infection is tuberculosis?
A. Viral
B. Bacterial
C. Fungal
D. Parasitic
Q 8
Which vitamin's deficiency in the human body causes scurvy?
A. Vitamin A
B. Vitamin C
C. Vitamin E
D. Vitamin K
7
Vitamins
Q 1
Deficiency of Vitamin A results in:
A. Night Blindness
B. Rickets
C. Scurvy
D. Beriberi
Q 2
Deficiency of Vitamin D results in:
A. Night Blindness
B. Scurvy
C. Rickets
D. Anaemia
Q 3
Which vitamin is obtained from the Sun?
A. Vitamin C
B. Vitamin A
C. Vitamin B12
D. Vitamin D
Q 4
Which of the following helps in clotting of blood?
A. Vitamin B1
B. Vitamin B2
C. Vitamin D
D. Vitamin K
Q 5
Fat soluble vitamins are
A. Vitamins A, B
B. Vitamins A, D, E, K
C. Vitamins A, B, C, D
D. Vitamins B, C
Q 6
Water soluble vitamins are
A. Vitamins B, E
B. Vitamins A, B
C. Vitamins C, D
D. Vitamins B, C
Q 7
Vitamin A is found in the
A. White vegetables
B. Green vegetables
C. Yellow vegetables
D. Red vegetables
Q 8
Night blindness is due to lack of
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D
8
Human Anatomy
Q 1
Largest organ of the human body?
A. Skin
B. Liver
C. Heart
D. Lungs
Q 2
Largest internal organ of the human body?
A. Liver
B. Skin
C. Heart
D. Kidney
Q 3
Smallest bone in the human body?
A. Stapes (ear bone)
B. Malleus (ear bone)
C. Incus (ear bone)
D. Femur (thigh bone)
Q 4
Largest bone in the human body?
A. Femur (thigh bone)
B. Tibia (shin bone)
C. Humerus (upper arm bone)
D. Fibula (calf bone)
Q 5
Number of bones in the adult human body?
A. 206
B. 270
C. 213
D. 250
Q 6
Number of bones in a newborn baby?
A. 270
B. 206
C. 214
D. 256
Q 7
Number of ribs in the human body?
A. 24 (12 pairs)
B. 12 (6 pairs)
C. 26 (13 pairs)
D. 20 (10 pairs)
Q 8
Total number of vertebrae in the human spine?
A. 33
B. 26
C. 31
D. 24
9
Fossil Fuels And Energy
Q 1
A fuel cell generates electricity using?
A. Hydrogen
B. Coal
C. Petrol
D. Wood
Q 2
The main fuel used in thermal power stations is?
A. Coal
B. Uranium
C. Sunlight
D. Wind
Q 3
Natural gas is lighter than?
A. Air
B. Water
C. Petroleum
D. Coal
Q 4
Which fossil fuel produces ash after burning?
A. Coal
B. Natural gas
C. Petrol
D. Kerosene
Q 5
Which country discovered the first oil well?
A. USA (Pennsylvania, 1859)
B. Saudi Arabia
C. Russia
D. Iran
Q 6
Which country is the largest consumer of oil?
A. USA
B. China
C. India
D. Japan
Q 7
Which gas is known as marsh gas?
A. Methane
B. Ethane
C. Propane
D. Butane
Q 8
Coal is classified on the basis of?
A. Carbon content
B. Colour only
C. Weight only
D. Place of mining
10
Inventions
Q 1
Who invented the radio?
A. Thomas Edison
B. Alexander Graham Bell
C. Nikola Tesla
D. Marconi
Q 2
Who invented the television?
A. Charles Francis Jenkins
B. John Logie Baird
C. Philo Farnsworth
D. Thomas Edison
Q 3
Who invented the smallpox vaccine?
A. Louis Pasteur
B. Edward Jenner
C. Robert Koch
D. Joseph Lister
Q 4
Zero was discovered by:
A. Indian mathematicians (Brahmagupta)
B. Al-Khwarizmi
C. Pythagoras
D. Euclid
Q 5
Who invented the doctor's thermometer?
A. Celsius
B. Kelvin
C. Galileo
D. Fahrenheit
Q 6
What product, invented by William Shockley, John Bardeen and Walter Brattain at Bell Labs in 1947, revolutionised the electronics industry?
A. Transistor
B. Diode
C. Capacitor
D. Microchip
Q 7
Though Mitsubishi built the VCR market from 1969 onwards with its VHS standard, it was actually some other company which made the first video-recorder. Name it:
A. Sony
B. Philips
C. JVC
D. Ampex
Q 8
The invention of which product by Robert Noyce in 1959 made electronic equipment shrink in size?
A. Transistor
B. Microprocessor
C. Integrated circuits
D. Vacuum tube
11
Branches Of Science
Q 1
Entomology is the study of what?
A. Insects
B. Birds
C. Fungi
D. Viruses
Q 2
Microbiology is the study of what?
A. Microorganisms such as bacteria and fungi
B. Insects
C. Parasites
D. Plants
Q 3
Parasitology is the study of what?
A. Parasites and their hosts
B. Viruses
C. Fungi
D. Bacteria
Q 4
Virology is the study of what?
A. Viruses and viral diseases
B. Bacteria
C. Protozoa
D. Fungi
Q 5
Bacteriology is the study of what?
A. Bacteria
B. Viruses
C. Fungi
D. Protozoa
Q 6
Mycology is the study of what?
A. Fungi
B. Bacteria
C. Algae
D. Plants
Q 7
Protozoology is the study of what?
A. Protozoa
B. Bacteria
C. Viruses
D. Fungi
Q 8
Zoology is the study of what?
A. Animals
B. Plants
C. Insects
D. Birds
12
Chemistry Basics
Q 1
What is the chemical formula of methane gas?
A. CH₄
B. CO₂
C. NH₃
D. C₂H₆
Q 2
Which is the weakest acid among the following?
A. H₂SO₄
B. HClO
C. HNO₃
D. HCl
Q 3
What is commonly used to remove ice from roads during winter?
A. Sand
B. Sugar
C. Ash
D. Salt
Q 4
Which gases are commonly used in gas welding?
A. Oxygen, acetylene and argon
B. Hydrogen and oxygen
C. Nitrogen and acetylene
D. Oxygen and acetylene
Q 5
What is the most abundant element in the universe?
A. Hydrogen
B. Helium
C. Oxygen
D. Carbon
Q 6
What is the chemical formula of baking soda?
A. Na₂CO₃
B. NaHCO₃
C. NaOH
D. CaCO₃
Q 7
Which gas turns lime water milky?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
Q 8
Which gas is used in the preparation of soda water?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen