FREE JEE NEET NOTES

2022-01-28 10:51:24 Win exciting prizes and scholarships by testing your knowledge!

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2022-01-06 10:10:37 Physiology MCQs

1. Unit of distensibility is
a) ml/mmHg
b) mmHg ml
c) mmHg/ml

2. The Compliance of veins to arteries
a) 8 times
b) 16 times
c) 24 times

3. The pulmonary artery pressure as compared to systemic arterial pressure is
a) 1/10th
b) 1/6th
c) 1/3rd

4. Distensibility is
a) Compliance/volume
b) Volume/ Compliance
c) Compliance * Volume

5. When blood is 400 ml in arterial system, then pressure is
a) 700 mmHg
b) 0 mmHg
c) 100 mmHg


6. The Circulation compensated even if blood loss is
a) 25%
b) 20%
c) 15%

7. Delayed compliance occurs in
a) Arteries
b) Veins
c) Arterioles

8. Pulse Pressure is
a) Compliance / Stroke volume
b) compliance * stroke volume
c) stroke vol / compliance

9. Arterial pressure depends upon
a) stroke vol
b) compliance
c) Both a & b

10. Pressure and compliance relationship is
a) Direct
b) Inverse
c) None of these Open / Comment

2022-01-04 16:50:34 • Can you start NEET preparation now?
• Strategy by tarun sir
• Will neet postponed?








Watch this video for answer Open / Comment

2022-01-03 13:35:11 Father of Biology : Aristole
Father of Modern Biology: Linnaeus
Father of Antibiotics fb: Alexander Fleming
Father of Taxonomy : Carolus Linnaeus
Father of Immunology : Edward Jenner
Father of Microbiology : Anton van Leenuwenhoek
Father of Modern Microbiology : Louis Pasteur
Father of Medical Microbiology : Robert Koch
Father of Pathology : Rudolph Virchow
Father of Bacteriology : Robert Koch
Father of Virology : W.M.Stanley
Father of Embryology : Aristotle
Father of Modern Embryology : Ernst Von Baer
Father of Physiology : Stephan Hales
Father of Modern experimental physiology : Calude Bernard
Father of Genetics : Rev. Gregor Mendel
Father of Modern Genetics : Bateson
Father of Human Genetics/ Biochemical genetics : Arachibald Garrod
Father of Experimental Genetics : T.H. Morgan
Father of Haploid Genetics / Neurospora Genetics : Dodge
Father of Ecology : Theophrastus
Father of Cloning : Ian Willmut
Father of Plant anatomy : Grew
Father of Histology (Microscopic anatomy) : Malpighi
Father of Cytology : Robert Hooke
Father of modern Cytology : Swanson
Father of Paleontology : Leonard da Vinci
Father of modern Paleontology : Cuvier
Father of Concept of Evolution: Empedocles
Father of Botany: Theophrastus
Father of Modern Botany : Bauhin
Father of Zoology : Aristotle
Father of Biochemistry : Liebig
Father of Epidemiology : John Snow
Father of Plant Pathology : de Bary
Father of Modern Pathology : Rudolf Virchow
Father of Genetic Engineering : Paul Berg
Father of Gene therapy : Anderson
Father of Ethology : Konard Lorentz
Father of Endocrinology : Thomas Addison
Father of Eugenics : Galton
Father of Gerantology : Korenchevsk
Father of Palynology : Erdtman
Father of Stress physiology : Hans Selye
Father of Electrocardiography : Einthoven
Father of DNA Fingerprinting : Alec Jeffery
Father of Mycology : Micheli
Father of Bryology : Hedwig
Father of Phycology:Father of ATP cycle: Lipmann
Father of Chemotherapy :Father of Anatomy : Herophilus
Father of Modern Anatomy : Andreas Vesalius
Father of actinobiology / radiation biology : HJVS Muller
Father of Homeopathy : Hahnemann
Father of Ayurveda : Charka
Father of Surgery and Plastic Surgery : Susruta
Father of Blood circulation : William Harvey
Father of Medicine : Hippocrates
Father of Blood Group : Landsteiner
Father of Polio Vaccine : Jonas Salk
Father of Green Revolution: Norman Borlaug Open / Comment

2022-01-03 13:35:11 Very Important For NEET :

Morphine - Papaver somniferum

Nicotine - Nicotiana tobacum

Marijuana - Cannabis sativa

Coca alkaloids - Erythroxylum coca Open / Comment

2022-01-03 13:35:11 𝐀𝐋𝐋 𝐏𝐈𝐓𝐔𝐈𝐓𝐀𝐑𝐘 𝐆𝐋𝐀𝐍𝐃 𝐇𝐎𝐑𝐌𝐎𝐍𝐄𝐒 𝐓𝐎𝐆𝐄𝐓𝐇𝐄𝐑:

𝙏𝙍𝙄𝘾𝙆:- “𝐆𝐎𝐀𝐓 𝐅𝐋𝐀𝐏”

𝐄𝐱𝐩𝐥𝐚𝐧𝐚𝐭𝐢𝐨𝐧

i) 𝐆𝐇,

ii) 𝐎𝐗𝐘𝐓𝐎𝐂𝐈𝐍,

iii) 𝐀𝐂𝐓𝐇,

iv) 𝐓𝐒𝐇,

v) 𝐅𝐒𝐇,

vi) 𝐋𝐇,

vii 𝐀𝐃𝐇,

viii) 𝐏𝐑𝐎𝐋𝐀𝐂𝐓𝐈𝐍. Open / Comment

2022-01-03 13:35:11 12. Reactivity=
C
13. Metallic character=
C< Si < Ge < Sn < Pb

14. Acidic character of the oxides=
Co2 > SiO2 > Ge02 > SnO2 > PbO2

15. Reducing nature of hydrides=
CH4 < SiH4 < GeH4 < SnH4 < PbH4

16. Thermal stability of tetrahalides=
CCl4> SiCl4> GeCl4> SnCl4 > PbCl4

17. Oxidising character of M+4 species=
GeCl4 < SnCl4 < PbCl4

18. Ease of hydrolysis of tetrahalides=
SiCl4 < GeCl4 < SnCl4 < PbCI4

19. Acidic strength of trioxides=
N203 > P2O3 > As2O3

20. Acidic strength of pentoxides=
N2O2 > P2O2> As202 > Sb2O2 > Bi‌202

21. Acidic strength of oxides of nitrogen=
N2O < NO
22. Basic nature/ bond angle/ thermal stability and dipole moment of hydrides=
NH3 > PH3 > AsH3 > SbH3 > BiH3

23. Stability of trihalides of nitrogen=
NF3 > NCl3 > NBr3

24.Lewis base strength=
NF3
25. Ease of hydrolysis of trichlorides=
NCl3 > PCI3 > AsCl3 > SbCl3 > BiCl3

26. Lewis acid strength of trihalides of P, As, and Sb=
PCl3 > ASCl3 > SbCl3

27. Lewis acid strength among phosphorus trihalides
PF3 > PCl3 > PBr3 > PI3

28. Melting and boiling point of hydrides=
H2O > H2Te > H2Se >H2S

29. Volatility of hydrides=
H2O < H2Te < H2Se < H2S

30. Reducing nature of hydrides=
H2S < H2Se < H2Te

31. Covalent character of hydrides=
H2O < H2S < H2Se < H2Te

32. The acidic character of oxides (elements in the same oxidation state)=
SO2 > SeO2 > TeO2 > PoO2
SO3 > SeO3 > TeO3

33. Acidic character of oxide of a particular element (e.g. S)=
SO < SO2 < SO3
SO2 > TeO2 > SeO2 > PoO2

34. Bond energy of halogens=
Cl2 > Br2 > F2 > I2

35. Solubility of halogen in water =
F2 > Cl2 > Br2 > I2

36. Oxidising power=
F2 > Cl2 > Br2 > I2

37. Enthalpy of hydration of X ion=
F- > Cl- > Br- >I-

38. Reactivity of halogens:=
F> Cl> Br > I

39. Ionic character of M-X bond in halides
= M-F > M-Cl > MBr > M-I

40. Reducing character of X ion:=
I- > Br- > Cl- > F-

41. Acidic strength of halogen acids=
HI > HBr > HCI > HF

42. Reducing property of hydrogen halides
= HF < HCL < HBr < HI

43. Oxidising power of oxides of chlorine
= Cl2O > ClO2 > Cl206 > Cl2O7

44. Decreasing ionic size=
02- > F- > Na+ > Mg2+

45. Increasing acidic property=
Na2O3 < MgO < ZnO< P205

46. Increasing bond length=
N2 <02 < F2 < CL2

47. Increasing size=
Ca2+ < Cl- < S2-

48. Increasing acid strength=
HClO < HClO2 < HClO3 < HClO4

49. Increasing oxidation number of iodine=
HI< I2
50. Increasing thermal stability=
HOCl < HOClO < HOClO2 < HOClO3
»»--☆ Open / Comment

2022-01-03 13:35:11 BORON:
•In casting of copper as a dioxidizer
•Boron rods used in automic reactor.
•Boron fiber used in bullet proof jacket,
•In composite material of aircraft
•Used in braintumer therapy.

BORAX:
•As a flux for soldring metal.
•In borex bead test
•In softning of water
•Antiseptic
•Manufacturing of enamels of glazes, tiles.
•For making optical and borosilicals SS.
•Food preservative

ALUMINIUM:
• Making house hold, untensils, frames, roof,aircrafts.
• Electric wire.
•Thermite process (In metallurgy of Cr, Mn, Fe)
•For transportin nitric acid.
•AI, Hg used as reducing agent.
•Aluminium powder + Ammonium nitrate.

LEAD [Pb]:
•In making telegraph and telephone wires
•Making bullets
•Making chamber in HSO, process.

NITROGEN:
•In the manufacturing of HNO3, NH3, CaCN2.
•Liquid nitrogen used as refrigrant.
•Inert atmosphere in metallurgy.
•Gas thermometer and electrical bulb

NH3:
• Refrigeration
•Manufacturing HNO3, NaHCO3
•Artificial Silk.
• Urea Formation
•For solvent

HNO3:
• Manufacturing of ammonium nitrateas fertilizer.
•In explosive
• For making nitroglycerine.
• Making TNT.
• Pickling against of stainless steel.
• Etching of Metal
•Oxidizer in rocket fule. Open / Comment

2022-01-03 13:35:11 𝐒𝐎𝐌𝐄 𝐈𝐌𝐏𝐎𝐑𝐓𝐀𝐍𝐓 𝐂𝐎𝐍𝐍𝐄𝐂𝐓𝐈𝐍𝐆 𝐋𝐈𝐍𝐊𝐒 𝐁𝐄𝐓𝐖𝐄𝐄𝐍 𝐆𝐑𝐎𝐔𝐏𝐒

1. Bacteria & Fungi
Actinomycetes

2. Reptiles & Birds
Archaeopteryx

3. Chordates & Non-chordates
Balanoglossus

4. Cartilaginous & Bony fishes
Chimera (Rabbit fish/Ratfish)

5. Bryophytes & Pteridophytes
Club moss

6. Coelenterates & Platyhelminthes
Ctenophora

7. Pteridophytes & Gymnosperms
Cycas

8. Reptiles & Mammals
Echidna (Spiny ant eater)

9. Animals & Plants
Euglena

10. Gymnosperms & Angiosperms
Gnetum

11. Protista & Bryophytes
Hornworts

12. Pisces & Amphibia
Latimeria

13. Protista & Fungi
Myxomycetes

14. Annelida & Mollusca
Neopilina

15. Reptiles & Mammals
Ornithorhynchus (Duck billed platypus)

16. Annelida & Arthropoda
Peripatus (walking worm)

17. Protozoa & Porifera
Proterospongia

18. Bony fishes & Amphibia
Protopterus (Lung fishes)

19. Virus & Bacteria
Rickettsia

20. Amphibia & Reptiles
Seymouria

21. Amphibia & Reptilia
Sphenodon (Living fossil lizard)

22. Echinodermata & Chordata
Tornaria larva

23. Annelida & Mollusca
Trochophore larva

24. Living & non-living
Virus

25. Protozoa & Metazoa
Xenoturbella Open / Comment