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๐ŸŒŸSome Important Increasing Order ๐ŸŒŸ:

๐ŸŒŸ 1. Bond Angle :

(i) CH4 , C2H4 , C2H2
(ii) H2O, NH3 , CH4 , CO2
(iii) H2O, NH3 , CH4 , BH3
(iv) NO2โ€”, NO2 , NO2+
(v) H2Se, H2S, H2O
(vi) AsH3 , PH3 , NH3
(vii) PF3 , PCl3 , PBr3 , PI3
(viii) NF3 , NCl3
(ix) NF3 , NH3 , NCl3
(x) OF2 , OH2 , Cl2O

๐ŸŒŸ 2. Melting Point :

(i) Cs, Rb, K, Na, Li
(ii) Mg, Ba, Sr, Ca, Be
(iii) CaI2 , CaBr2 , CaCl2 , CaF2
(iv) BeCl2 , MgCl2 , CaCl2 , SrCl2 , BaCl2
(v) NaI, NaBr, NaCl, NaF
(vi) CsCl, RbCl, KCl, NaCl
(vii) AlCl3 , MgCl2 , NaCl

๐ŸŒŸ 3.Boiling Point :

(i) PH3 , AsH3 , NH3 , SbH3
(ii) H2S, H2Se, H2O
(iii) HCl, HBr, HI, HF
(iv) NH3 , HF, H2O
(v) He, Ne, Ar, Kr
(vi) H2O, D2O
(vii) H2 , Cl2 , Br2

๐ŸŒŸ 4.Dipole moments :

(i) CCl4 , CHCl3 , CH2Cl2 ,CH3Cl
(ii) NF3 , NH3 , H2O, HF
(iii) Cis-chloropropene, Trans-chloropropene
(iv) p, m, o-dichlorobenzene
(v) CH3I, CH3Br, CH3F, CH3Cl
(vi) NH3 , SO2 , H2O, HF
(vii) H2S, H2O
(viii) HI, HBr, HCl, HF
(ix) PH3 , ASH3 , SbH3 , NH3
(x) H2O, H2O2
Important Points For NEET ๐ŸŒŸ

Evidences from comparative morphology and anatomy :-

โšก๏ธExamples of homologous organs:โšก๏ธ

(i) Forelimbs of mammals
(ii) Thorn of Bougainvillea and tendril of Cucurbita both are modification of axillary bud.
(iii)Vertebrate hearts or brains
(iv)Mouth parts of insects :
Cockroach Honey bee Mosquito
(Biting & chewing) (Chewing & lapping) (Piercing & Sucking)
(v) Testes in male and ovaries in female
(vi) Potato and Ginger - both are modified shoot
(vii) Radish and Carrot - both are modified roots

โšก๏ธExamples of Analogous organs :โšก๏ธ

(i) Wings of butterfly and birds
(ii) Eye of the octopus and of mammals
(iii) Flippers of Penguins and Dolphins
(iv) Sweet potato (root modification) and potato (stem modification)
(v) Sting of bee and scorpion
(vi) Chloragogen cells of earthworm and liver of vertebrates
๐ŸŒบ๐’๐Ž๐Œ๐„ ๐ˆ๐Œ๐๐Ž๐‘๐“๐€๐๐“ ๐‚๐Ž๐๐๐„๐‚๐“๐ˆ๐๐† ๐‹๐ˆ๐๐Š๐’ ๐๐„๐“๐–๐„๐„๐ ๐†๐‘๐Ž๐”๐๐’

1. Bacteria & Fungi
๐ŸŒธ Actinomycetes

2. Reptiles & Birds
๐ŸŒธ Archaeopteryx

3. Chordates & Non-chordates
๐ŸŒธ Balanoglossus

4. Cartilaginous & Bony fishes
๐ŸŒธ Chimera (Rabbit fish/Ratfish)

5. Bryophytes & Pteridophytes
๐ŸŒธ Club moss

6. Coelenterates & Platyhelminthes
๐ŸŒธ Ctenophora

7. Pteridophytes & Gymnosperms
๐ŸŒธCycas

8. Reptiles & Mammals
๐ŸŒธ Echidna (Spiny ant eater)

9. Animals & Plants
๐ŸŒธ Euglena

10. Gymnosperms & Angiosperms
๐ŸŒธ Gnetum

11. Protista & Bryophytes
๐ŸŒธHornworts

12. Pisces & Amphibia
๐ŸŒธ Latimeria

13. Protista & Fungi
๐ŸŒธ Myxomycetes

14. Annelida & Mollusca
๐ŸŒธNeopilina

15. Reptiles & Mammals
๐ŸŒธ Ornithorhynchus (Duck billed platypus)

16. Annelida & Arthropoda
๐ŸŒธPeripatus (walking worm)

17. Protozoa & Porifera
๐ŸŒธ Proterospongia

18. Bony fishes & Amphibia
๐ŸŒธ Protopterus (Lung fishes)

19. Virus & Bacteria
๐ŸŒธ Rickettsia

20. Amphibia & Reptiles
๐ŸŒธSeymouria

21. Amphibia & Reptilia
๐ŸŒธ Sphenodon (Living fossil lizard)

22. Echinodermata & Chordata
๐ŸŒธ Tornaria larva

23. Annelida & Mollusca
๐ŸŒธ Trochophore larva

24. Living & non-living
๐ŸŒธVirus

25. Protozoa & Metazoa
๐ŸŒธXenoturbella
๐Ÿ’BORON:
โ€ขIn casting of copper as a dioxidizer
โ€ขBoron rods used in automic reactor.
โ€ขBoron fiber used in bullet proof jacket,
โ€ขIn composite material of aircraft
โ€ขUsed in braintumer therapy.

๐Ÿ’ BORAX:
โ€ขAs a flux for soldring metal.
โ€ขIn borex bead test
โ€ขIn softning of water
โ€ขAntiseptic
โ€ขManufacturing of enamels of glazes, tiles.
โ€ขFor making optical and borosilicals SS.
โ€ขFood preservative

๐Ÿ’ ALUMINIUM:
โ€ข Making house hold, untensils, frames, roof,aircrafts.
โ€ข Electric wire.
โ€ขThermite process (In metallurgy of Cr, Mn, Fe)
โ€ขFor transportin nitric acid.
โ€ขAI, Hg used as reducing agent.
โ€ขAluminium powder + Ammonium nitrate.

๐Ÿ’ LEAD [Pb]:
โ€ขIn making telegraph and telephone wires
โ€ขMaking bullets
โ€ขMaking chamber in HSO, process.

๐Ÿ’ NITROGEN:
โ€ขIn the manufacturing of HNO3, NH3, CaCN2.
โ€ขLiquid nitrogen used as refrigrant.
โ€ขInert atmosphere in metallurgy.
โ€ขGas thermometer and electrical bulb

๐Ÿ’ NH3:
โ€ข Refrigeration
โ€ขManufacturing HNO3, NaHCO3
โ€ขArtificial Silk.
โ€ข Urea Formation
โ€ขFor solvent

๐Ÿ’ HNO3:
โ€ข Manufacturing of ammonium nitrateas fertilizer.
โ€ขIn explosive
โ€ข For making nitroglycerine.
โ€ข Making TNT.
โ€ข Pickling against of stainless steel.
โ€ข Etching of Metal
โ€ขOxidizer in rocket fule.
๐Ÿ”ด 12. Reactivity=
C<Si< Ge < Sn <Pb

๐Ÿ”ด 13. Metallic character=
C< Si < Ge < Sn < Pb

๐Ÿ”ด 14. Acidic character of the oxides=
Co2 > SiO2 > Ge02 > SnO2 > PbO2

๐Ÿ”ด 15. Reducing nature of hydrides=
CH4 < SiH4 < GeH4 < SnH4 < PbH4

๐Ÿ”ด 16. Thermal stability of tetrahalides=
CCl4> SiCl4> GeCl4> SnCl4 > PbCl4

๐Ÿ”ด 17. Oxidising character of M+4 species=
GeCl4 < SnCl4 < PbCl4

๐Ÿ”ด 18. Ease of hydrolysis of tetrahalides=
SiCl4 < GeCl4 < SnCl4 < PbCI4

๐Ÿ”ด 19. Acidic strength of trioxides=
N203 > P2O3 > As2O3

๐Ÿ”ด 20. Acidic strength of pentoxides=
N2O2 > P2O2> As202 > Sb2O2 > Biโ€Œ202

๐Ÿ”ด 21. Acidic strength of oxides of nitrogen=
N2O < NO <N2O3 <N2O4 < N2O5

๐Ÿ”ด 22. Basic nature/ bond angle/ thermal stability and dipole moment of hydrides=
NH3 > PH3 > AsH3 > SbH3 > BiH3

๐Ÿ”ด 23. Stability of trihalides of nitrogen=
NF3 > NCl3 > NBr3

๐Ÿ”ด 24.Lewis base strength=
NF3 <NCl3 <NBr3 < NI3

๐Ÿ”ด 25. Ease of hydrolysis of trichlorides=
NCl3 > PCI3 > AsCl3 > SbCl3 > BiCl3

๐Ÿ”ด 26. Lewis acid strength of trihalides of P, As, and Sb=
PCl3 > ASCl3 > SbCl3

๐Ÿ”ด 27. Lewis acid strength among phosphorus trihalides
PF3 > PCl3 > PBr3 > PI3

๐Ÿ”ด 28. Melting and boiling point of hydrides=
H2O > H2Te > H2Se >H2S

๐Ÿ”ด 29. Volatility of hydrides=
H2O < H2Te < H2Se < H2S

๐Ÿ”ด 30. Reducing nature of hydrides=
H2S < H2Se < H2Te

๐Ÿ”ด 31. Covalent character of hydrides=
H2O < H2S < H2Se < H2Te

๐Ÿ”ด 32. The acidic character of oxides (elements in the same oxidation state)=
SO2 > SeO2 > TeO2 > PoO2
SO3 > SeO3 > TeO3

๐Ÿ”ด 33. Acidic character of oxide of a particular element (e.g. S)=
SO < SO2 < SO3
SO2 > TeO2 > SeO2 > PoO2

๐Ÿ”ด 34. Bond energy of halogens=
Cl2 > Br2 > F2 > I2

๐Ÿ”ด 35. Solubility of halogen in water =
F2 > Cl2 > Br2 > I2

๐Ÿ”ด 36. Oxidising power=
F2 > Cl2 > Br2 > I2

๐Ÿ”ด 37. Enthalpy of hydration of X ion=
F- > Cl- > Br- >I-

๐Ÿ”ด 38. Reactivity of halogens:=
F> Cl> Br > I

๐Ÿ”ด 39. Ionic character of M-X bond in halides
= M-F > M-Cl > MBr > M-I

๐Ÿ”ด 40. Reducing character of X ion:=
I- > Br- > Cl- > F-

๐Ÿ”ด 41. Acidic strength of halogen acids=
HI > HBr > HCI > HF

๐Ÿ”ด 42. Reducing property of hydrogen halides
= HF < HCL < HBr < HI

๐Ÿ”ด 43. Oxidising power of oxides of chlorine
= Cl2O > ClO2 > Cl206 > Cl2O7

๐Ÿ”ด 44. Decreasing ionic size=
02- > F- > Na+ > Mg2+

๐Ÿ”ด 45. Increasing acidic property=
Na2O3 < MgO < ZnO< P205

๐Ÿ”ด 46. Increasing bond length=
N2 <02 < F2 < CL2

๐Ÿ”ด 47. Increasing size=
Ca2+ < Cl- < S2-

๐Ÿ”ด 48. Increasing acid strength=
HClO < HClO2 < HClO3 < HClO4

๐Ÿ”ด 49. Increasing oxidation number of iodine=
HI< I2 <ICl <HIO4

๐Ÿ”ด 50. Increasing thermal stability=
HOCl < HOClO < HOClO2 < HOClO3
ยปยป--โ˜†
๐Ÿช๐€๐‹๐‹ ๐๐ˆ๐“๐”๐ˆ๐“๐€๐‘๐˜ ๐†๐‹๐€๐๐ƒ ๐‡๐Ž๐‘๐Œ๐Ž๐๐„๐’ ๐“๐Ž๐†๐„๐“๐‡๐„๐‘:๐Ÿช

๐Ÿ”ฅ๐™๐™๐™„๐˜พ๐™†:- โ€œ๐†๐Ž๐€๐“ ๐…๐‹๐€๐โ€๐Ÿ”ฅ
๐Ÿ๐Ÿ๐Ÿ๐Ÿ
๐„๐ฑ๐ฉ๐ฅ๐š๐ง๐š๐ญ๐ข๐จ๐ง

๐Ÿชi) ๐†๐‡,

๐Ÿชii) ๐Ž๐—๐˜๐“๐Ž๐‚๐ˆ๐,

๐Ÿชiii) ๐€๐‚๐“๐‡,

๐Ÿชiv) ๐“๐’๐‡,

๐Ÿชv) ๐…๐’๐‡,

๐Ÿชvi) ๐‹๐‡,

๐Ÿชvii ๐€๐ƒ๐‡,

๐Ÿชviii) ๐๐‘๐Ž๐‹๐€๐‚๐“๐ˆ๐
.
๐Ÿ’ฅVery Important For NEET๐Ÿ’ฅ:

๐ŸŒŸ Morphine - Papaver somniferum

๐ŸŒŸNicotine - Nicotiana tobacum

๐ŸŒŸMarijuana - Cannabis sativa

๐ŸŒŸCoca alkaloids - Erythroxylum coca
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
Forwarded from Yakeen Physics 2025 | NEET + JEE Notes & Updates (๐–๐ˆ๐‹๐ƒ ๐Ÿ‡ฎ๐Ÿ‡ณ)
โ€ข Can you start NEET preparation now?
โ€ข Strategy by tarun sir๐Ÿ”ฅ
โ€ข Will neet postponed?

https://youtu.be/N3rrIb_kxng
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2025/07/09 02:41:53
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