Presentation -oxygen( o2) For class 9

Presentation -oxygen( o2) For class 9

• 1.
  ehj −nËZ£ ¢hou -fË¡L«¢aL ¢h‘¡e
• 2.
  f¡W - A¢„−Sef¡W- A¢„−Se
• 3.
  A¢„−Se fËL«¢a−a AeÉ¡eÉ −j±−mla¥me¡u ph−Q−u −hn£ f¢lj¡−Z f¡Ju¡ k¡uz j¤š² AhÙÛ¡u h¡u¤−a, q¡C−XÊ¡−S−el p−‰ −k±Nl©−f S−m A¢„−Se b¡−Lz e¡C−VÊV, L¡hÑ−eV, p¡m−gV−k±Nl©−f S−m A¢„−Se b¡−Lz e¡C−VÊV, L¡hÑ−eV, p¡m−gV fËi«¢a fË¡L«¢aL mhZ, j¡¢V−a A−eL M¢eS fc¡−bÑ Hhw fË¡Z£ J E¢ác SN−al ¢h¢iæ Ef¡c¡−eJ A¢„−Se A¢dL f¢lj¡−Z b¡−Lz
• 4.
  fl£r¡N¡−l A¢„−S−el fËÙ¹¥¢a e£¢a:- fl£r¡N¡−l fV¡¢pu¡j −LÓ¡−lV jÉ¡‰¡e£S-X¡C A„¡C−Xlfl£r¡N¡−l fV¡¢pu¡j −LÓ¡−lV jÉ¡‰¡e£S-X¡C A„¡C−Xl ¢jnËZ−L Ešç L−l A¢„−Se fËÙ¹¥a Ll¡ quz 2KClO3 +[MnO2]=2KCl + 3O2 + [MnO2]
• 5.
  ¢Qœ
• 6.
  ¢he¡a¡−f h¡ p¡d¡lZEo·a¡u A¢„−Se fËÙ¹¥¢a pj£LlZ- 2Na2O2 + 2H2O = 4NaOH +O2
• 7.
  A¢„−S−el djÑ −i±a djÑ- (L) A¢„−Se hZÑq£e, Nåq£e NÉ¡pz (M) S−m M¤h p¡j¡eÉ â¡hÉz (N) n£am AhÙÛ¡u (-183 −px) NÉ¡p¢Vl Efl Efk¤š² Q¡f fË−u¡N Ll−m A¢„−Se e£m¡i al−m f¢lZa quz I alm−L BlJ n£am Ll−m (-219 −px) L¢We A¢„−Se f¡Ju¡ k¡uz0 0
• 8.
  l¡p¡u¢eL djÑ (1) A¢„−S−elhýl©fa¡ J l©f−ic - ¢ae¢V A¢„−Se flj¡Z¤ k¤š² q−u J−S¡e (O3) NÉ¡−pl HL¢V Ae¤NWe L−lz AbÑ¡v J−S¡e A¢„−S−el HL¢V l©f−icz (2) l¡p¡u¢eL p¢œ²ua¡ - A¢„−Se HL¢V A¢a-p¢œ²u −j±¢mL fc¡bÑz(2) l¡p¡u¢eL p¢œ²ua¡ - A¢„−Se HL¢V A¢a-p¢œ²u −j±¢mL fc¡bÑz (3) A¢„−Se ¢e−S SÆ−m e¡z ¢L¿¹¥ AeÉ hÙ¹¥−L SÆm−a p¡q¡kÉ L−lz (4) d¡a¥ J Ad¡a¥l p−‰ A¢„−S−el ¢h¢œ²u¡u A„¡CX −k±N NWe L−lz
• 9.
  L¡hÑ−el p−‰ ¢h¢œ²u¡ EšçL¡W Lum¡ A¢„−S−e SÆ−m L¡hÑe-X¡C-A„¡CX NÉ¡p Evfæ L−lz C + O2 = CO2 Lj A¢„−S−e L¡hÑe−L −f¡s¡−m L¡hÑe-j−e¡ A„¡CX (CO) Evfæ quz( ) Evfæ quz 2C + O2 = 2CO A¢„−S−e q¡C−XÊ¡−Se NÉ¡p−L −f¡s¡−m q¡C−XÊ¡−Se e£m¡i ¢nM¡u SÆ−m Hhw Sm£u h¡×f Evfæ quz 2H2+O2=2H2O q¡C−XÊ¡−S−el p−‰ ¢h¢œ²u¡
• 10.
  e¡C−VÊ¡−S−el p−‰ ¢h¢œ²u¡ ¢hc¤ÉvØg¥¢m−‰l p¡q¡−kÉ fË¡u 3000 −px Eo·a¡u e¡C−VÊ¡−Se J A¢„−Se ¢h¢œ²u¡ L−l e¡C¢VÊL A„¡CX (NO) NÉ¡p Evfæ L−lz 0 (NO) NÉ¡p Evfæ L−lz N2+O2=2NO
• 11.
  −p¡¢Xu¡−jl p−‰ ¢h¢œ²u¡ SÆm¿¹−p¡¢Xu¡j−L A¢„−Se f§ZÑ NÉ¡pS¡−l −gm−m −p¡e¡m£ ¢nM¡pq SÆ−m −p¡¢Xu¡j j−e¡-A„¡CX Hhw −p¡¢Xu¡j f¡l A„¡CX (Na2O2) Evfæ L−lz−p¡¢Xu¡j f¡l A„¡CX (Na2O2) Evfæ L−lz 4Na+O2=2Na2O 2Na+O2=Na2O2
• 12.
  ¢S−ˆl p−‰ ¢h¢œ²u¡ ¢Sˆ−LA¢„−S−e Ešç Ll−m p¡c¡ fn−jl ja ¢Sˆ A„¡CX (ZnO) −k±N Evfæ quzja ¢Sˆ A„¡CX (ZnO) −k±N Evfæ quz H−L c¡nÑ¢e−Ll Em h−mz
• 13.
  −m¡q¡l p−‰ ¢h¢œ²u¡ 1)−m¡¢qaaç −m¡q¡−L A¢„−S−e fË−hn Ll¡−m −m¡q¡ ESÆm q−u SÆm−a b¡−L Hhw −nÄaaç Øg¥¢m‰ EcÚN£lZ L−l −g−l¡−p¡−L¢lL A„¡CX (Fe3O4) Evfæ L−lz H¢V HL¢V k¤NÈ A„¡CXz 3Fe+2O2=Fe3O4 2)p¡d¡lZ Eo·a¡u BâÑ h¡u¤l j−dÉ −m¡q¡−L ¢LR¥¢ce −g−m2)p¡d¡lZ Eo·a¡u BâÑ h¡u¤l j−dÉ −m¡q¡−L ¢LR¥¢ce −g−m l¡M−m −m¡q¡l Efl m¡m−Q h¡c¡j£ l−Pl BÙ¹le f−lz HC BÙ¹le−L j¢lQ¡ h−mz j¢lQ¡l l¡p¡u¢eL pw−La qm, 2Fe2O3,3H2O --- A¢„−Se HL¢V a£hË S¡lL fc¡bÑ ¢qp¡−h L¡S L−lz Ec¡qlZ:- 2Fe+O2=2FeO C+O2=CO2
• 14.
  --- A¢„−S−el ¢hS¡le¢œ²u¡ A¢„−Se gÓ¥¢le−L ¢hS¡¢la L−lz H¢V A¢„−S−el ¢hS¡le d−jÑl Ec¡qlZzEc¡qlZz
• 15.
  A¢„−S−el −n¡oL r¡l£u fV¡¢pu¡jf¡C−l¡ NÉ¡−mV âhZ A¢„−Se NÉ¡p−L −n¡oZ L−l h¡c¡j£ hZÑ d¡lZ L−lzNÉ¡p−L −n¡oZ L−l h¡c¡j£ hZÑ d¡lZ L−lz
• 16.
  A¢„−S−el pe¡š²LlZ HL¢V ¢nM¡q£eSÆm¿¹ nm¡L¡−L A¢„−Se NÉ¡−p fË−hn Ll¡−m nm¡L¡¢V ESÆm ¢nM¡ pqNÉ¡−p fË−hn Ll¡−m nm¡L¡¢V ESÆm ¢nM¡ pq SÆm−a öl¦ L−lz HC fl£r¡l p¡q¡−kÉ p¡d¡lZ i¡−h A¢„−Se−L pe¡š² Ll¡ quz
• 17.
  A¢„−S−el hÉhq¡l 1)S£he d¡l−elSeÉ A¢„−S−el fË−u¡Se quz A¢„−S−el p¡q¡−kÉ fË¡Z£SNv nÄ¡pL¡kÑ Q¡me¡ L−lz 2)jle¡fæ −l¡N£,fhÑa¡−l¡q£ J S−ml e£−Q X¥h¤¢l−cl nÄ¡pL¡kÑ2)jle¡fæ −l¡N£,fhÑa¡−l¡q£ J S−ml e£−Q X¥h¤¢l−cl nÄ¡pL¡kÑ pqSi¡−h Q¡m¡−a A¢„−Se hÉhq¡l Ll¡ quz 3)p¡m¢gE¢lL AÉ¡¢pX J e¡C¢VÊL AÉ¡¢p−Xl ¢nÒf Evf¡c−e A¢„−Se hÉhq©a quz
• 18.
  fhÑa¡−l¡q£ jle¡fæ −l¡N£X¥h¤¢l jle¡fæ−l¡N£X¥h¤¢l
• 19.
  deÉh¡c L¡¢j¢e L¥j¡l ¢pwq−j−j¡¢lu¡m EµQal Prepared & Presented by S.Majumder and SANJIB ROY L¡¢j¢e L¥j¡l ¢pwq −j−j¡¢lu¡m EµQal j¡dÉ¢jL ¢hcÉ¡mu