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NUMBER OF CHROMOSOME(ANIMALS)
*Human being - 46
*Butterfly - 380
*Fox - 78
*Hen - 78
*Dog - 78
*Elephant - 56
*Horse - 64
*Cow - 60
*Rat - 42
*Tiger - 38
*Earthworm - 36
*Ant - 2
*Mosquito - 6
*Frog - 26
■ NUMBER OF CHROMOSOME(PLANTS)
*Sugarcane - 80
*Tobacco - 48
*Potato - 48
*Wheat - 42
*Rice - 24
*Tomato - 24
*Cabbage - 18
*Onion - 16
❗️Computer coaching❗️
(MS Word: important shortcut
keys)
1. Decrease the font size by 1 point➡️ Ctrl+[
2. Increase the font size by 1 point➡️ Ctrl+]
3. Split the document window➡️ Ctrl+Alt+S
4. Cycle through the locations of the four previous changes made to the document➡️ Ctrl+Alt+Z
5. Switch to print preview➡️ Ctrl+Alt+I
6. Copy the selected formatting➡️ Ctrl+Shift+C
7. Indent the paragraph➡️ Ctrl+M
8. Remove paragraph formatting➡️ Ctrl+Q
9. Insert a page break➡️ Ctrl+Enter
10.Insert a hyperlink➡️ Ctrl+KPowerPoint: Important Shortcut keys
☞Ctrl+N : Create new presentation
☞Ctrl+M : Add a new slide
☞Page down : Go to the next slide
☞Page up : Go to the previous slide
☞F5 : Start the slide show
☞Ctrl+Q : Close PowerPoint
☞Ctrl+Spacebar : Play or pause media
☞Ctrl+Backspace : Delete one word to the left
☞Ctrl+C : Copy selected object or text
☞Ctrl+D / Ctrl+Drag the mouse : Duplicate an object
(Office 2010 and Office 2007: Not available)
☞Ctrl+G : Group selected shapes, pictures, or WordArt objects
Which vegetable contains a chemical called anthocyanin that turns pink/reddish in the
presence of acid, turns purple when neutral and turns blue or green when mixed with
alkaline substances?
Ans 1. Pomegranate
2. Red leaf lettuce
3. Radish
4. Red cabbage✔️
What happens when an acid or a base is mixed with water?
Ans 1. Decrease in the concentration of ions (H2O+/OH–) per unit volume
2. Decrease in the concentration of ions (H3O+/OH–) per litre volume
3. increase in the concentration of ions (H3O+/OH–) per unit volume
4. Decrease in the concentration of ions (H3O+/OH–) per unit volume✔️
Which of the following metals having atomic number 3 is a soft, silvery metal with very
low density that reacts vigorously with water and corrodes quickly in air?
Ans 1. Potassium
2. Sodium
3. Lithium✔️
4. Rubidium
Which level of the food chain includes millipede, springtails, woodlice, dung flies and
slugs that feed on the dead or decaying plants or animals?
Ans 1. Carnivores
2. Detritivores✔️
3. Omnivores
4. Herbivores
Device Name - Finder - Country
01 Electron - M.J. Thomson - England
02 Protran - Goldstein
03 Proton - E. Rutherford - England
04 Neutron - James Chadwick - England
05 Cyclotron - Lawrence - America
06 Uranium - Martin Klaproth - Germany
07 Nucleus - Rutherford
08 Nuclear Reactor - Enrico Fermi
09 Ozone - Christian Schonbein - Germany
10 Cycles - John K. Macmillan - Scotland
11 Bicycle Tires - John Dunlop - UK
12 Motorcycle - G Daimler - Germany
13 Scooter - G. Bradshaw - UK
14 Atomic Number - Henry Moseley - England
15 Atomic Theory - John Dalton - England
16 Atomic Bomb - Auto Hahn - England
17 Atomic Structure - Neil Bohr and Rutherford -
18 Radio Telegraphy - David Edward Hughes - UK
19 Radio Telegraphy - G. Marconi - Italy
20 Radio Dharmata - Antoine Bacquerel - France
21 Radio Activism - Henry Becquerel
22 Radium - Marie Curie and Poiri - France
23 Dynamite - Alfred Nobel
24 P. H. Scale - S. P. Sorenson
25 Hydrogen - Henry Cavendish - England
26 Nitrogen - Daniel Rather Ford - England
27 Plutonium - G. T. Seaborg - America
28 Magnesium - S. Humphrey Davy - England
29 Photography (in metal) - L.A. Denguere, J. Nipsey
30 Photography (Paper) -W. Fox Talbot
31 Photography (film) -Jon Corbutt - America
32 Oxygen - Carl Wilhelm Schlie, Jozef Priestley - Sweden (United Kingdom)
33 Inert Gas Organ - Ramsay and Raleigh
34 Thorium - Berzelius
35 Television(Mechanical) - Johnlogie Baird - England(UK)
36 Television (Electronic) - P. T. Farnsberth - America
37 Barometer - Evangelista Torcelli - Italy
38 locomotive - George Stephenson - United Kingdom
39 Steam Engine (Condenser) - James Watt - Scotland
40 Steam Engine (Piston) - Dham Newcomen - UK
41 Diesel Engine - Rudolf Karl Diesel - Germany
42 Locomotive Railroad - Richard Trekithick - UK
43 Jet Engine - Sir Frank Whitley - England (UK)
Which French chemist summarised his experiment in 1806, and proved that the mass
ratio of elements in a chemical compound is always the same, regardless of the
source of the compound?
Ans 1. Joseph Proust✔️
2. Robert Boyle
3. Jacob Berzelius
4. John Dalton
Which of the following is a type of bryophyte that lives in many environments and is
characterised by its small, flattened leaves, root-like rhizoids, and peristome?
Ans 1. Funaria✔️
2. Ulothrix
3. Cladophora
4. Ulva
Find the correct chemical formula of nitromethane.
Ans 1. CH3NO
2. CH3NO2✔️
3. CH4NO2
4. CH3NO3
In optics, the refractive index of a substance is described by the formula n = c/v, where
c is:
Ans 1. the speed of light in medium
2. the centre of curvature
3. the radius of the sphere
4. the speed of light in vacuum✔️
Scientific Facts - Why and How?
,
Salinity in sea water is caused by Sodium chloride
Due to which one object sticks to the other, because cohesive force
Viscosity in liquids is due to
Due to cohesive force
A test tube lying in water shines because
Due to complete internal change
A crack in the glass shines because
Due to total internal reflection
A person climbing a mountain leans forward because
To increase durability
Atmospheric pressure on earth is caused by Gravitational force
It is difficult to cook food on the mountains because the atmospheric pressure decreases when you go above the surface of the earth
The walls at the bottom of the dam are made thick because the pressure of the liquid increases with the increase in depth
Steel bullet floats in mercury because the density of mercury is higher than that of steel
Needle appears to float on the surface of water Due to surface tension
Particles of cream separate from milk Due to centrifugal force
The reason why ice floats on water is because the density of ice is less than that of water.
Shortcut Work
F1 . opening the help window.
F2 . Rename the selected items.
F3 . Search for the files and folders.
F4 . Display list.
F5 . Refresh the active window.
F7 . Spelling and Grammar investigations.
F10 __. Display menu bar in active programs
Biology
*Father of Biology
Ans : Aristotle
*The term Biology was first coined by
Ans : Lamarck
*Father of Zoology
Ans : Aristotle
*The living beings were classified into two (plants and animals) by
Ans : Aristotle
*The animals were classified into animal with red blood and without red blood by
Ans : Aristotle
*The famous book of Aristotle
Ans : History of Animals
*Father of botany
Ans : Theophrastus
*The famous book of Theophrastus
Ans : Historia plantum
*The branch of biology which deals with the study of origin of life
Ans : Abiogenesis
*The life originated from
Ans : Water
*The first successful experiment based on the origin of life was done by
Ans : A.I. Oparin (1932)
*First life is a microbes having the capacity of
Ans : Photosynthesis
*The basic Chemical unit of life
Ans : Amino acids
*Amino acids were first synthesized in a laboratory by
Ans : Stanley Miller and Harold Urey
*Study of life in outer space
Ans : Exobiology
*The basic unit of life
Ans : Cell
*The cell is synthesized of chemicals such as carbohydrates, protein, lipid, nucleic acid etc.
*The components of carbohydrates
Ans : Carbon, Hydrogen, Oxygen
*Father of modern Botany
Ans : Carl Linnaeus
*Father of Indian Botany
Ans : William Rosburgh
*Scientist who discovered that the body of animal is made up of cell
Ans : Theodor Schwann
*Scientist who discovered that the body of plant is made up of cell
Ans : M.J. Schleiden
*Scientist who discovered that new cells are formed by the division of cell
Ans : Rudolph Virchow
*The components of proteins are
Ans : Amino acids
*Nucleic acids are responsible for
Ans : Heredity
#chemistry #fci #elements
Some important element facts
✅Until total discovered elements - 112
✅Elements existing in nature - 88
✅Artificially (man made) produced elements - 24
✅Number of metallic elements - 90
Number of non-metallic elements - 22
✅The element to be found most abundantly on the earth's surface - Oxygen
✅The metallic element to be found most abundantly on the Earth's surface - Aluminium.
✅The lightest element to be found in the nature. - Hydrogen
✅The heaviest element to be found in the nature. - Osmium
✅The lightest metallic element to be found in the nature. - Lethium
✅The lightest non-metallic element to be found in the nature - Hydrogen
✅The liquid metallic element to be found in the nature - Mercury
✅The liquid non-metallic element to be found in the nature. - Bromine
✅The non-metal which is the best conductor of electricity - Graphite (an allotrop of carbon)
✅The metal which is the best conductor of the electricity – Silver.
✅The metal which is the second best conductor of the electricity- copper.
✅The most malleable element to be found in the nature- Gold.
✅ join Agriculture exams library website for Full FCI NOTES
✅The most reactive non-metallic element to be found in the nature- Fluorine
✅The most reactive metallic element to be found in the nature - cesium.
✅The element having maximum ionization potential (IP) in the nature. - Helium
✅The maximum electrons acceptable element in the nature. - Chlorine
✅The most electro negative element in the nature. - Fluorine
✅The most powerful oxidising substance. - Fluorine
✅The group of the most gaseous elements. - Zero group
✅Name of monoatomic elements. - Inert gases
✅The most abundantly found element in the human body - Oxygen
✅The element kept inside the kerosene oil – Sodium.
➖➖➖➖➖➖➖➖➖➖➖➖
GENERAL SCIENCE PREVIOUS YEARS QUESTIONS
1. Raw aluminum is known as pyrite
2. The pigment found in human skin is melanin
3.Pellagra disease is caused by persistent deficiency of niacin nutrient
4.Flu is caused by virus
5. The red color in fireworks is due to transium
6.Reflection of sound is the cause of echo
7. The release of beard mustache is related to testosterone hormone
8. World Forest Day is celebrated on 21st March
9. The boiling point of pure water will be 212 Fahrenheit on the Fahrenheit scale
10. Salt is prepared from sea water by evaporation method. Answer
11.Monozite is an ore of Thorium
12. Radiocarbon dating determines the age of a fossil
13. Paralysis is caused due to deficiency of Vitamin B7
14. Mica is a bad conductor of electricity
15. The reason for the rise of oil in the oil lamp is hair color.
16. The reason for the rise of oil in the oil lamp is hair color.
17.Sugar baby is a type of watermelon
18. The heaviest metal is Osmium
19. The surface tension is the reason why the rain drop is spherical
20. Energy is produced inside the cell by the mitochondria
21. Butane gas is used in cigarette lighter
22. Heart rate is checked by Cardiogram instrument
23.All heavy radioactive elements are ultimately converted into lead
24. The largest part of the human brain is the cerebrum
25. Ferrous sulphate is used in making blue ink
26. Isoprene is used in the synthesis of rubber
27. While making gold jewelery copper is mixed in it
28. Neutron is temporary
29. Lymphocyte Protects From Pathogens
30. Bats fly in the dark because bats produce ultrasonic waves
31. The first kidney transplant was done by Joseph More
32. The tendency to lose electrons is called oxidation
33. The smell of onion and garlic is due to potassium
34. The infrared ray portion of the sun's rays heats the solar cooker
35. Osin protein is found in bone
36. Cooking gas is a mixture of butane and propane
37. The human body requires 15 grams of nicotinic acid daily.
38. Meat, egg and milk are the main sources of protein.
39. Aerosolga spleen is called
40. Cheese is an example of a gel.
Commercial and chemical names of common chemicals
#CHEMISTRY #JEE #NEET #Time_saver_Post
✺ Business Name
➭ IUPAC Name
➛ molecule formula
✺ chalk
➭ calcium carbonate
➛ CaCO₃
grape extract
➭ glucose
➛ C6H₁₂O6
✺ Alcohol
➭ ethyl
➛ C₂H5OH
✺ Caustic Potash
➭ potassium hydroxide
➛ KOH
4 Eating Soda
➭ sodium bicarbonate
➛ NaHCO₃
4 lime
➭ calcium oxide
➛ CaO
✺ Gypsum
➭ calcium sulfate
➛ CaSO₄.2H₂O
✺ tnt
Tri Nitro Tallinn
➛ C6H₂CH₃ (NO₂) ₃
✺ washing soda
➭ sodium carbonate
➛ Na₂CO₃
✺ blue blue
copper sulphate
➛ CuSO₄
✺ saline
➭ ammonium chloride
➛ NH₄Cl
✺ alum
➭ potassium aluminum sulfate
➛ K₂SO₄Al₂ (SO₄) ₃.24H₂O
Extinguished lime
➭ calcium hydroxide
➛ Ca (OH) ₂
Om Mand
4 starch
➛ C6H10O5
✺ Laughing Gas
➭ nitrous oxide
➛ N₂O
✺ red medicine
➭ potassium permanganate
➛ KMnO₄
✺ red vermilion
➭ lead paraxide
➛ Pb₃O₄
✺ dry ice
➭ solid carbon dioxide
➛ CO₂
Om Shora
➭ potassium nitrate
➛ KNO₃
✺ vinegar
Acetic acid dilute solution
➛ CH₃COOH
✺ icing
➭ borax
➛ Na₂B₄O7.10H₂O
✺ spirit
➭ Methyl Alcohol
➛ CH₃OH
✺ slate
➭ silica aluminum oxide
➛ Al₂O₃2SiO₂.2H₂O
✺ green case
➭ ferric sulfate
➛ Fe₂ (SO₄) ₃
