Important Inorganic Compounds and Their Uses

Common Name  -  Chemical Name  -  Major Uses

Common salt - Sodium chloride - Used in food preservative.
Caustic soda - Sodium hydroxide - Used in manufacture of soap, paper, rayon, etc.
Washing soda - Sodium carbonate - Used in manufacture of glass, softening of water for washing cloths etc.
Baking soda - Sodium bicarbonate - Used in fire extinguisher, cooking, antacid etc.
Glauber's salt - Sodium sulphate - Used in manufacture of window glass, brown paper, as detergent additive.
Hypo - Sodium thiosulphate (pentahydrate) - Used in photography for fixing or washing.
Pearl ash - Potassium carbonate - Used in soft soap, washing wool etc.
Indian salt peter - Potassium nitrate - Used in gun powder which is a 6:1:1 mixture of potassium, charcoal, and sulphur.
Salammoniac - Ammonium chloride - Used for soldering, in dry cell etc.
Epsum salt - Magnesium sulphate (hepta hydrate) - Used as laxative.
Quick lime - Calcium oxide - Used in cement, glass, mortar, white washing etc.
Milk of lime - Calcium hydroxide - Used in cement, glass, mortar, white washing etc.
Lime stone, marble - Calcium carbonate - Used in cement, glass mortar, white washing spar etc.
Gypsum - Calcium sulphate - Used in cement, production of (dihydrate) plaster of paris etc.
Plaster of paris - Calcium sulphate (semihydrate) - Used in casts, moulds, plastering etc.
Heavy spar - Barium sulphate - Used as a barium meal for contrast dye x-ray photography of the abdomen.
Borax - Sodium tetraborate (decahydrate) - Used as a flux in optical gas, in match, stick to prevent after glow, as a preservative.
Alum (potash alum) - Potassium aluminum sulphate - Used in purification of water to remove dirt.
Dry ice - Solid carbon dioxide - Used to induce artificial rain, cinema locations etc.
Oil of vitriol - Sulphuric acid - King of chemicals, used in most industries.
Bleaching powder - Calcium oxychloride - Used as bleaching agent and disinfectant.
Lunar caustic - Silver nitrate - Used in silver mirror, marking ink for identification of person in elections etc.
Philosopher's wool - Zinc oxide - Used in paints, as a filler in rubber etc.
Corrosive sublimate - mercuric chloride - Used in batteries.
Bordeaux mixture - Mixture of copper sulphate and milk of lime - Used as a fungicide.
Blue vitriol - Copper sulphate (pentahydrate) - Used in bordeaux mixture.
White vitriol - Zinc sulphate (leptahydrate) - Used to produce white paint by mixing with with barium sulphate.
Water glass - Sodium silicate - Used as a filler in soap, fire proofing timber and textiles etc.

Important Branches of Biology

Name of the Study - Description

Anatomy - The study of morphology of internal systems or organs.
Autecology - The study of individual organism or a single species and their relation to the environment.
Bacteriology - The study of bacteria.
Biochemistry - The study of chemistry of various biological processes.
Bioinformatics - The mathematical, statistical, and computing methods that aim to solve biological problems using DNA and amino acid sequence and related information.
Biophysics - The application of various tools, techniques, methods, and principles of physical science to the study of biological problems.
Biotechnology - The application of technology to biological process for industrial, agricultural, and medical purpose.
Botany - The study of plants.
Cytology - The study of cells.
Ecology - The study of relationship of organisms to one another and their environment.
Ethology - The study of the behavior of animals in their natural environment.
Exobiology - The study of extra-terrestrial life.
Genetics - The study of inheritance and variations and the factors controlling them.
Histology - The study of tissues and cells at microscopic level.
Marine biology - The study of marine organisms.
Microbiology - The study of microscopic organisms.
Molecular biology - The study of molecular organization of the organisms.
Morphology - The study of external body structure.
Mycology - The study of fungi.
Palynology - The study of pollen grains.
Paleontology - The study of fossils.
Phycology - The study of algae.
Physiology - The study of the way in which organisms or parts of organisms function.
Synecology - The study of group of organisms involving different species and their relation to the environment.
Virology - The study of virus.
Zoology - The study of animals.

Persons With Popular Names in India

Prince of Beggars - Madan Mohan Malaviya
Bengali Tiger - Bipin Chandra Pal
Maratha Kesari - Bal Gangadhar Tilak
Punjab Lion - Lala Lajpat Rai
Sage of Sabarmati - Mahatma Gandhi
Indian Machiavelli - Chanakya
India Napoleon - Samudragupta
Leopard of the Snow - Ang Rita
Indian Bismarck - Sardar Vallabhai Patel
Light of Asia - Buddha
Lokmanya - Bal Gangadhar Tilak
Loknayak - Jayaprakash Narayan
J.P. - Jayaprakash Narayan
C.R. - C. Rajagopalachari
Rajaji - C. Rajagopalachari
Deenabandhu - C.F. Andrews
Deshabandhu - C.R. Das
Grand Old Man of India - Dadabhai Naoroji
Mahamana - Madan Mohan Malaviya
Mahatma - Mahatma Gandhi
Bapu - Mahatma Gandhi
Gurudev - Rabindranath Tagore
Guruji - Golwalkar
Iron Lady of India - Indira Gandhi
Priyadarshini - Indira Gandhi
Barefooted Painter - M.F. Hussain
Kipper - K.M. Cariappa
Indian Shakespeare - Kalidasa
Badshah Khan - Khan Abdul Ghaffar Khan
Frontier Gandhi - Khan Abdul Ghaffar Khan
Faker-e-Afghan - Khan Abdul Ghaffar Khan
Netaji - Subhash Chandra Bose
Prince of Patriots - Subhash Chandra Bose
Birdman of India - Salim Ali
Nightingale of India - Sarojini Naidu
Lion of Kashmir - Sheikh Mohammad
T.T.K. - T.T. Krishnamachari
Andhra Kesari - Tangutri Prakasam
Grand Old Man of Indian Journalism - Tushar Kanti Ghosh
Acharya - Vinobha Bhave
Sage of Paunar - Vinobha Bhave
Man of Peace - Lal Bahadur Shastri
Babuji - Jagjeevan Ram
Little Master - Sunil Gavaskar
Flying Sikh - Milkha Singh
Mysore Tiger - Tippu Sultan
Sage of Kanchi - Sankaracharya
Saint of Gutters - Mother Teresa
Man of the Masses - K. Kamaraj
Golden Girl of Indian Athletics - P.T. Usha
Anna - C.N. Annadurai
Akbar of Kashmir - Zian-Ul-Abideen
Kovembu - K.V. Puttappa
Rani of Jhansi - Lakshmibai
Shahid - Bhagat Singh
Kathal Mannan - Gemini Ganesan
Natikar Tilakam - Sivaji Ganesan
Chachaji - Jawaharlal Nehru
Sher-e-Punjab - Ranjit Singh
Punjab Kesari - Lala Lajpat Rai
Milkman of India - Varghese Kurian

Persons With Popular Names in The World

Light of the world - Jesus Christ
Prince of Pilgrimage - Huien Tsang
The Wizard of Menlopark - Edison
Rascal Monk - Rasputin
Good Shepherd - Jesus Christ
Apostle of Free Trade - Richard Cobden
King of Rock and Roll - Elvis Presley
Columbus of Space - Neil Armstrong
Master of Suspense - Alfred Hitchcock
Second Duke - Benitto Mussolini
Iron Duke - Duke of Wellington
Poet's Poet - Edmund Spencer
Desert Fox - Erwin Rommel
Lady with the Lamp - Florence Nightingale
GBS - George Bernard Shaw
Little Corporal - Napolean Bonaparte
Maid of Orleans - Joan of Arc
Fuhrer - Adolf Hitler
Man of Blood and Iron - Otto Von Bismarck
Maiden Queen - Queen Elizabeth I
Bard of Avon - William Shakespeare
Grand Old Man of Britain - Gladstone
American Gandhi - Martin Luther King
The Daughter of East - Benazir Bhutto
Iron Butterfly - Margaret Thatcher
Iron Lady - Margaret Thatcher
African Gandhi - Dr. Kenneth Kaunda

Scientific Instruments and Their Use

Actinometer - An instrument used to measure the intensity of radiation.
Altimeter - An instrument used for measuring altitude in flights.
Ammeter - An instrument used for measuring the strength of electric current.
Anemometer - An instrument used for measuring the velocity of the wind and finding its direction.
Audiometer - An instrument used for measuring the intensity of sound.
Barograph - An instrument used for recording atmospheric pressure.
Barometer - An instrument used for measuring atmospheric pressure.
Calorimeter - An instrument used for measuring the amount of heat.
Calipers - An instrument used to measure the diameter of the wire, tube, or rod.
Chronometer - An instrument used for showing accurate time.
Clinical Thermometer - An instrument used for measuring temperature of human body.
Compass - An instrument used for finding direction.
Common balance - An instrument used to measure the mass of an object.
Computer - An electric or electronic machine for carrying out complex calculations based on information already fed.
Cryometer - An instrument used to measure very low temperature.
Dynamo - A device used for converting mechanical energy into electrical energy.
Galvanometer - An instrument used for measuring strength of electric current.
Hydrometer - An instrument used for measuring the relative density of liquids.
Hygrometer - An instrument used for measuring the relative humidity of atmosphere .
Hydrophone - An instrument used for measuring sound under water.
Lactometer - An instrument used for measuring the relative density of milk.
Manometer - An instrument for measuring the pressure of gas.
Microscope - An instrument for magnifying small objects.
Periscope - An instrument for seeing objects over an obstacle such as from a submarine..
Pyrometer - An instrument used for measuring high temperature from a great distance.
Radar - A device used for locating objects from a distance such as flights.
Rain Guage - An instrument used for measuring the quantity of rainfall at a particular place.
Screw Gauge - An instrument used to measure the thickness of an object.
Seismograph - An instrument used for measuring and recording the intensity and origin of earthquake shocks.
Sextant - An instrument used to measure angular distance between two objects.
Spectrograph - An instrument used for spectrum analysis.
Speedometer - An instrument used for measuring the speed of vehicles.
Sphygmomanometer - An instrument used for measuring blood pressure.
Stethoscope - An instrument used for hearing the sound of heart and lungs.
Stereoscope - An optical device to see two dimensional pictures.
Teleprinter - A communication device for automatic sending, receiving, and printing telegraphic messages from distant places.
Telescope - An instrument used for viewing magnified images of distant objects.

Thermostat - An automotive device for regulating constant temperature.
Thermometer - An instrument used for measuring temperature of an object.
Transistor - A small device which is used to amplify current.
Television - A device used to receiving visible moving images by means of electromagnetic waves.
Voltmeter - An instrument used for measuring potential difference between two points.

Scientific Units of Measurement

Unit of electric current - Ampere.
Unit of wavelength - Angstrom.
Unit of  atmospheric pressure - Bar.
Unit of activity of radionuclitide - Becquerel.
Unit of  luminous intensity - Candela.
Unit of heat - Calorie.
Unit of  electric charge - Coulomb.
Unit of intensity of sound - Decibel.
Unit of  power of a lens - Diopter.
Unit of force - Dyne
Unit of work - Erg
Unit of  depth of sea - Fathom
Unit of  electric capacitance - Farad.
Unit of magnetic induction - Gauss
Unit of inductance - Henry
Unit of work or energy - Joule.
Unit of speed of ship - Knot.
Unit of luminous flux - Lumen
Unit of illuminance - Lux
Unit of  brightness - Lambert.
Unit of  magnetic flux - Maxwell
Unit of subjective pitch in sound - Mel
Unit of ankle - Degree.
Unit of pressure - Pascal
Unit of magnetic field - Tesla
Unit of temperature - Centigrade, Fahrenheit, Kelvin.
Unit of power - Watt.
Unit of  force - Newton and Dyne
Unit of potential difference - Volt