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General Science Question & Answer

General General Science Question & Answer

1.When light splits by a glass prism into seven colours, the phenomenon is called?

dispersion of light

Image result for dispersion of light\

 

2.Thermal radiations are electromagnetic wave belonging to which region?

Infrared Region

3.Which electromagnetic wave has the longest wavelength?

Radio

Image result for electromagnetic wave

4.Which ore contains both calcium and magnesium?

Dolomite 

 

Ore Name Chemical Name Metal Present
Hematite Iron Oxide Iron
Bauxite Aluminum oxide Aluminum
Galena Lead sulphide Lead
Cinnabar Mercury Sulphide Mercury
Malachite Copper Carbonate Copper

 

5.Which is present in the largest amount in terms of percent by mass in the Earth’s crust?

Oxygen

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6.Which is the most of India’s rainfall?

Cyclonic

• A satellite image shows massive cloud coverage over Rajasthan and movement of cyclone Komen in the Bay of Bengal

Image result for Cyclonic india

7.Indian sovereignty in sea extends up to how many nautical miles?

12

Image result for Indian sovereignty in sea extends

8.Deficiency of which vitamin causes knock-knee, bow legs and pigeon chest in children?

Vitamin D

9.What is the proportion of red blood corpuscles and white blood corpuscles in human body?

500 : 1

 

Red Blood cell  Erythrocytes lifetime of about 120 days.
White Blood Cells Leukocytes They live for about 3 to 4 days
Platelets (55% of the volume composed of plasma) Thrombocytes lifespan of a platelet is normally just 5 to 9 days

 

9.Rainbow is formed due to a combination of ?

Dispersion and total internal reflection

10.Which is considered as the drug of last resort for human being?

Streptomycin

Streptomycin is an antibiotic used to treat a number of bacterial infections. This includes tuberculosis, Mycobacterium avium complex, endocarditis, brucellosis, Burkholderia infection, plague, tularemia, and rat bite fever.

11.Litmus paper used in laboratory from which obtained?

Lichen

Image result for Lichen

A lichen is a composite organism that arises from algae and/or cyanobacteria living among filaments of a fungus in a symbiotic relationship.

12.Which is the highest grade of coal whose surface is shining and has the highest calorific value?

Anthracite

13.Plants which lack true roots, stems and leaves are called by which name?

Thallophytes

14.Which is the highest peak in South India?

Anaimudi

Image result for Anamudi

Anamudi or Anai Mudi is a mountain located in the Indian state of Kerala. It is the highest peak in the Western Ghats and South India, at an elevation of 2,695 metres, and a topographic prominence of 2,479 metres.

15.Glass is made of the mixture of which things?

Sand and silicates

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16.What are the Doldrums?

Equatorial zone with low pressure

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17.In human beings, What is the opening of the stomach into the small Intestine called?

Pylorus

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18.Which winds are flowing from sub tropical high pressure to sub polar low pressure?

Westerlies

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19.What is the outermost layer of Sun called?

Corona

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20.Which kinds of lenses are used to treat Astigmatism ?

Cylindrical

Astigmatism is a type of refractive error in which the eye does not focus light evenly on the retina. This results in distorted or blurred vision at all distances.

21.What is the largest ecosystem of the Earth?

Hydrosphere

Image result for Hydrosphere

22.Which is a major constituent of Biogas?

Methane

23.Cooking gas is a mixture of which gases?

Propane and Butane

24.What is a mixture of potassium nitrate, powdered charcoal and sulphur called

Gun powder

25.Which Pollination takes place with the help of water is called?

Hydrophyily

26.In which hemisphere does India lie?

Northern and eastern

27.Spice saffron is obtained from which part of plant?

Stigma

28.What is the permissible level of noise in a silent zone at daytime?

75db

29.Rutherford’s scattering experiment related to the size of which thing?

Nucleus

Rutherford’s alpha particle scattering experiment shows the presence of nucleus in the atom

30.Which type of cell has the ability to develop into any type of all?

Stem Cells

Stem cells are mother cells that have the potential to become any type of cell in the body. One of the main characteristics of stem cells is their ability to selfrenewable

31.Which gas is absorbed during photosynthesis?

CO2

32.For crop does India have the largest cultivated area in the world?

Rice

33.Which is used as a fuel in Nuclear power stations in India?

Thorium

34.What is the capital of Lakshadweep?

Kavaratti

35.The albedo of which cloud is the highest?

Cirrus cloud

36.Which glass is used in bullet proof screens?

Reinforced glass

37.Because of which factor, clouds do not precipitate in deserts?

Low humidity

38.For a body moving with constant speed in a horizontal circle, what remains constant?

KEThe food material in fungi is stored in which form?

39.The high altitude tropical forest which has dwarfed trees is known by which name?

Elfm forest

40.The food material in fungi is stored in which forV?

Glycogen

41.Which is a free living bacteria that help in nitrogen fixation?

Azotohacter

Present in Nodulated root of plants

42.Which bacteria helps in improving the soil fertility?

Rhizobrum

43.The sun is visible a little before the actual sunrise because of which reaction?

Atmospheric refraction

44.Which Bacteria commonly lives in the intestine of human?

Escherichia coli

45.What is the minimum forest cover to maintain ecological balance?

33%

46.By which force can fat be separated from milk in a cream separator?

Centrifugal force

47.EI Nino current appears along the coast of which country?

Peru

48.Who appoints the Governor of Jammu and Kashmir?

President

49.If we move from the equator to a pole, what will be the value of g?

Increases

50.Why are In the northern hemisphere, currents deflected to their right?

Due to coriolis force

51.Which law of thermodynamics introduces the concept of entropy?

Second law

52.What is the principle by which a cooling system (Radiator) in a motor car works?

Convection

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it Thermal conduction is the transfer of heat (internal energy) by microscopic collisions of particles and movement of electrons within a body.

53.What does Nail polish remover contain?

Acetone

54.Which tissue in man where no cell division, occurs after birth?

Nerves

55.Chlorine acts as a bleaching agent only in the presence of which thing?

Moisture

56.Which are the The best and the poorest conductors of heat respectively?

Silver (Ag), and lead (Pb)

57.Which colloidal solution is used in photography?

Colloidal silver bromine

Bromine is the only nonmetal element that naturally takes form as a liquid under normal circumstances. It easily evaporates, and in its gaseous state has a smell similar to that of chlorine.

58.Where are diesel locomotives manufactured?

Varanasi

Chittaranjan Locomotive Works, Chittaranjan.

Diesel Loco Modernisation Works, Patiala.

Integral Coach Factory, Chennai.

Rail Coach Factory, Kapurthala.

Rail Wheel Factory, Bangalore.

59.During the fermentation of sugar, which enzyme which converts glucose into ethyl alcohol?

zymase

60.Which human organ is most susceptible to harmful radiations?

Lungs

61.A person feel fatigued due to deposition of which acid in their muscles?

Lactic Acid

62.Which planet take maximum time for one revolution around the Sun?

Jupiter

63.When the wind is deflected due to the rotation of the Earth, what is it called?

Geostropic wind

64.Which is used in storage batteries?

Lead

65.The problem of leaching of the soil is more pronounced in the areas how rainfall is there?

Heavy rainfall

66.What is most suitable for the core of an electromagnet?

Soft iron

67.Which insect spreads kala-azar?

Sand fly

68.Which is the main ingredient in cement?

Lime stone

69.Which industry produces the most nonbiodegradable wastes?

Thermal power plants

70.Which peninsular river is westward flowing?

Tapti

71.A convex mirror makes a good rearview mirror for a car. Why?

It forms erect, reduced images

72.Which type of the fruit formed without fertilisation?

Parthenocarpy

73.Indian first took part in the Olympic Games in which year?

1920 Antwerp, Belgium

India first participated at the Olympic Games in 1900, with a lone athlete (Norman Pritchard) winning two medalsboth silver- in athletics. The nation first sent a team to the Summer Olympic Games in1920, Three athletes and two wrestlers could not win any medal.

74.Which is the plant hormone that induces cell division?

Auxins

75.In vulcanisation, with which the natural rubber is heated?

Sulphur

76.Which planet of the solar system spins on its axis at the fastest rate?

Jupiter

77.Which algae is used as biofertilizer in the production of crop paddy?

Blue green algae

78.Which unicellular algae are used as source of oxygen in space research?

Chlorella

79.Which region gets no rainfall throughout the year?

The Tundra Region

80.Which gas has maximum colorific value?

Oil gas

81.A molecule of glucose on complete oxidation yields howmany ATP molecules in case of aerobic respiration?

36

82.Which river flows between the Vindhya and Satpura ranges?

Narmada

83.Which is the type of movement that occurs during opening and closing of flower?

Nastic movement

84.Which gland is responsible for the secretion of insulin?

Pancrease

85.Which type of rainfall that occurs when wind rises up along a hill or mountain barrier?

Orographic

86.Which are the most commonly used chemicals in the artificial rain making or cloud seeding?

Silver Iodide (Agl)

87.What happens, When water is heated from 0°C to 10°C the volume of water?

First decreases then increases

88.What do you understand by the word regur?

Black soil found in the Deccan

Black soil is also known as Black Cotton Soil as cotton is an important crop which is grown in this type of soil. The soil content is rich in calcium carbonate, potash, lime and magnesium carbonate but has poor phosphorus content. It is mostly found in areas such as Gujarat, Madhya Pradesh and Maharashtra. It is also found in states like Tamil Nadu, Andhra Pradesh and Karnataka.

89.Besides water and light which is more essential as a raw material for photosynthesis?

CO2

90.Of the floating iceberg in the sea, how much is the portion remaining above the sea level?

1/10th

91.Which salt is found in bone in largest amount?

Calcium phosphate

92.Which is a strong smelling agent added to LPG cylinder to help in the detection of gas leakage?

Thioethanol

93.Food prepared by plant, through which is transported to different part of plant?

Phloem

94.What is responsible for blue body syndrone?

Nitrate

95.Inside the body, why does blood not coagulate?Due to the presence of heparin

96.Which river flows through a rift valley?

Narmada

97.By whom are the planets are kept in motion in their respective orbits?

Gravitation and centrifugal force

98.BCG vaccination (Bacillus Calmette Guerine) is injected to get immunity from which disease?

Tuberculosis

99.Which chemical is used for preserving fruit juices?

Sodium benzoate

Some examples: Used as food preservatives are ethylenediamine-tetraacetic acid (EDTA), citric acid, sorbitol, and tartaric acid

100.Among the biotic components of the ecosystem, the producer system is ?

Plants

101.Which group of gases contribute to the ‘Green House Effect’ ?

Carbon dioxide and Methane

102.Which is the sweetest natural sugar ?

Fructose

103.Blue colour of sky is due to phenomenon of

Scattering

 

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