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Friday, 1 March 2019

General Science


• The working principle of a rocket is:
Ans: Newton's 3rd law

• Chemical name of Alumina:
Ans: Aluminium oxide

• Which is the most ionic compound?
Ans: Caesium Fluoride


• Document established for documenting rare and endangered species of animals and plants:
Ans: Red Data Book

• Scientific name of common cold:
Ans: Nasopharyngitis

• World Haemophilia day:
Ans: April 17

• Who invented carbon dating?
Ans: Willard Libby

• Electric charge was first observed in a substance called:
Ans: Amber

• Halley's comet is seen in every ____ years
Ans: 76 years

• Which planet is also known as 'green planet'?
Ans: Uranus

• HI Ni virus is associated with:
Ans: Swine Flu

• The weakest force out of the four fundamental forces:
Ans: Gravitational force

• The vitamin which is destroyed by heat:
Ans: Vitamin C

• The minimum distance of reflecting surface from the source of sound for echo:
Ans: 17.2 metre

• Calcium oxide is commonly known as:
Ans: Quick lime

• When a body is in free fall under gravity; its apparent weight will be____.
Ans: Zero

• Hormone which also called as ADH:
Ans: Arginine  vasopressin

• International mole day:
Ans: October 23

• Pyranometre is used to measure ____. 
Ans: Solar irradiance

• The age of rocks from the moon has been estimated using the technique:
Ans: Uranium dating

• The Earth is closest to the Sun on:
Ans: 3rd January (Perihelion)

• Which planet takes more time to complete one rotation than revolution?
Ans: Venus

• The coldest and slowest revolving planet:
Ans: Neptune

• 'Unfinished Dream' is a book written by:
Ans: Verghese Kurien

• Father of white revolution in India:
Ans: Verghese Kurien

• Atoms of different elements having same mass number and different atomic number:
Ans: Isobars

• The new methods used in chemistry which aim to reduce pollution are called:
Ans: Green Chemistry

• Which instrument is used for measuring the heat of chemical reactions?
Ans: Calorimeter

• What is the unit of density?
Ans: kg/m^3

• Rays used in distant photography:
Ans: Infrared

• Deficiency of melanin causes:
Ans: Albinism

• Genes are located in the:
Ans: Chromosomes

• Vitamins obtained from fish oil is
Ans: Vitamin A and D

• What is known as 'rock oil'?
Ans: Petroleum

• The element with atomic number 100:
Ans: Fermium

• Acid rain is due to the presence of ____.
Ans: Sulphur dioxide

• The catalyst used for the manufacture of ammonia:
Ans: Iron

• The ISRO Chairman at the time of launching of 'Mangalyaan'
Ans: K. Radhakrishnan

• The substance which covers dentine:
Ans: Enamel

• Animals living at the bottom of water are called:
Ans: Benthic animals

• Theory of natural selection was put forward by:
Ans: Charles Darwin

• Sound waves used in SONAR is _____.
Ans: Ultrasonic sound

• The emf of a dry cell is ______.
Ans: 1.5 volts

• Light travels fastest in which medium?
Ans: Vacuum

• The flowerless or seedless plants are called:
Ans: Cryptogams

• Organisms that use sunlight to prepare their food are known as:
Ans: Photoautotrophs

• The acid which makes scratches on glass wares:
Ans: Hydrofluoric acid

• Rubber used to make hoses is:
Ans: Thiokol

• The gas used in advertising sign boards
Ans: Neon

• The value of 'g' is maximum on which planet?
Ans: Jupiter

• The property of a substance to absorb moisture from the air on exposure is called
Ans: Deliquescence

• Who formulated wave theory of light?
Ans: Christiaan Huygens

• The unit of electric charge is:
Ans: coulomb

• The common name for pottassium carbonate is:
Ans: Potash

• Which wax is obtained from the petroleum?
Ans: Paraffin wax

• Semi conductor used for making integrated circuits.
Ans: Germanium

• Which allotrope of carbon has lubricant property?
Ans: Graphite

• Lunar caustic is:
Ans: Ag NO3

• Unit of measuring the depth of the sea:
Ans: Fathom

• Why an athlete runs some distance before taking a long jump?
Ans: Because by running, the athlete gives himself larger inertia of motion

• Milk secreted by mother in first 475 days after giving birth is known as:
Ans: Colostrum

• 'Annapurna' is a variety of:
Ans: Rice

• Espundia is a disease caused by:
Ans: Protozoa

• Which is the first artificial Plastic?
Ans: Bakelite

• A person shed tears while cutting onion due to the presence of:
Ans: Sulphur in onion

• Which substance is known as 'Blue gold'?
Ans: Water

• Nitric acid was invented by:
Ans: Jabir Ibn Hayyan

• As temperature increases what happened to the viscosity of a liquid?
Ans: Viscosity decreases

• Name the layer of earth's atmosphere which absorb UV rays:
Ans: Ozone

• Who categorised elements according to atomic number?
Ans: Mosley

• The existence of isotopes was discovered by:
Ans: Frederic Soddy

• Sodium carbonate is commonly called:
Ans: Washing soda

• The study of pollen grains is called:
Ans: Palynology

• The particles with half integral spin values are called:
Ans: Fermions

• A force that acts outwards of a body revolving in a circle:
Ans: Centrifugal force

• Who discovered Magnesium?
Ans: Joseph Black

• Eye diseases that occurs due to the deficiency of vitamin A:
Ans: Night blindness, Xerophthalmia

• The part of brain on which pain killers affect:
Ans: Thalamus

• Name the first artificial organic compound:
Ans: Urea

• The acid used to test the purity of gold:
Ans: Nitric acid

• Who discovered that light has maximum speed in vacuum?
Ans: Leon Fukart

• The alkaloid present in tobacco:
Ans: Nicotine

• Major industrial process of smelting Aluminium:
Ans: Hall Heroult process

• Which flower is known as painters palette?
Ans: Anthurium

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