Science and Technology Advancements:Enhancing the quality of life through inventions and research

Topics: Humphry Davy, Chlorine, Sodium Pages: 16 (1490 words) Published: October 11, 2013
General Science Questions and Answers
No.
Question
Answer
1
The theory of relativity was propounded by
Albert Einstein
2
The principal metal used in manufacturing steel is
Iron
3
An altimeter is used for measuring
Altitude
4
Oology is the study of
Bird Eggs
5
Radioactivity was discovered by
Henry Bacquerel
6
The metal used in storage batteries is
Lead

7
The instrument used to measure the relative humidity of air is Hygrometer
8
Barometer was invented by
Torricelli
9
The unit of power is
Watt
10
Radium was discovered by
Marie and Pierrie Curie
11
The existence of isotopes was discovered by
Frederick Soddy
12
Dynamo was invented by
Michael Faraday
13
The nuclear reactor was invented by
Enrico Ferni
14
The law of gravitation was propounded by
Sir Isaac Newton
15
Crescograph was invented by
J.C.Bose
16
Crescograph is used to measure the
Rate of growth of a plant
17
Galileo's first scientific discovery was
Pendulum
18
Microscope was invented by
Aaton Van Leewen Hock
19
The scientist who is known as father of modern biology is
Aristotle
20
The first person to see a cell under microscope was
Robert Hooke

21
The smallest flowering plant is
Worffia
22
The four blood groups were discovered by
Karl Landsteiner
23
Sodium was discovered by
Sir Humphry Davy
24
The atomic number of oxygen is
Eight
25
The basic building blocks of proteins are
Amino acids
26
The botanical name of the cotton plant is
Gossipium Hirsutum
27
An Electroscope is used to
Detect charges on a body
28
The unit of loudness is
Phon
29
An ammeter is used to measure
Electric current
30
Plant that eat insects are called
Insectivorous plants

31
Fruits that are formed without fertilization are called
Parthenocarpic
32
Plants that flower only once in their lifetime are called
Mono carpic
33
The botanical name for rice is
Oryza Sativa
34
Penicillin is obtained from
Mould
35
The largest tree in the world is
Seguoia Gigantica
36
Herpetology is the study of
Reptiles
37
Entomology is the study of
Insects
38
Ornithology is the study of
Birds
39
Ichtyology is the study of
Fishes
40
Osteology is the study of
Bones
41
The botanical name for brinjal is
Solanum melongenal
42
The botanical name for onion is
Allium Cepa
43
The study of sound is called
Acoustics
44
The study of heavenly bodies is called
Astronomy
45
The study of tissues is called
Histology

46
Electric Lamp was invented by
Thomas alva Edison
47
The fear of crowd is called
Ochlophobia
48
The fear of books is called
Bibliophobia
49
The fear of going to bed is called
Clinophobia
50
The symbol of gold is
Au
51
The symbol of sodium is
Na
52
The symbol of Sr stands for
Strontium
53
The symbol Rb stands for
Rubidium
54
The symbol Md stands for
Mendelevium
55
Calcium sulphate is commonly called
Plaster of Paris
56
Sodium carbonate is commonly called
Washing Soda
57
Sodium chloride is commonly known as
Common Salt
58
The chemical name of Chloroform is
Trichloromethane
59
The chemical name of baking powder is
Sodium bicarbonate
60
The chemical name of bleaching powder is
Calcium hypochlorite

61
The formula HCL stands for
Hydrochloric Acid
62
The formula H2SO4 stands for
Sulphuric Acid
63
The formula CHCI3 stands for
Trichloromethane
64
The formula H2O2 stands for
Hydrogen peroxide
65
A fungus which can only survive on other living organisms is called Obligate Parasite
66
A plant which lives in the dark is called
Scotophyte
67
A plant adapted to live in dry places is called a
Xerophyte
68
A plant adapted for growth in water is called a
Hydrophyte
69
Bifocal lens was invented by
Benjamin Franklin
70
Cement was invented by
Joseph Aspdin
71
Laser was invented by
Dr.Charles H.Townes
72
Electromagnet was invented by
William Sturgeon
73
Rayon was invented by
Sir Joseph Swann
74
Thermostat is an instrument used...
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