PCB CONCEPTS 📃

🔰INORGANIC IN SHOTS🔰 ✌️Increasings or Decreasing Order ✨01. Melting point= Li > Na > K > Rb > Cs ✨02. Colour of the flame= Li-Red, Na-Golden, K-Violet, Rb-Red, Cs-Blue, Ca-Brick red, Sr-Blood red, Ba-Apple green ✨03. Stability of hydrides = LiH > NaH > KH > RbH> CsH ✨04. Basic nature of hydroxides= LIOH < NaOH < KOH < RbOH < CsOH ✨05. Hydration energy= Li> Na > K> Rb > Cs ✨06.) Reducing character= Li > Cs > Rb > K > Na ✨07. Stability of +3 oxidation state= B> Al > Ga > In > T1 ✨08. Stability of +1 oxidation state= Ga < In < TI ✨09. Basic nature of the oxides and hydroxides= B< Al< Ga < In < TI ✨10. Relative strength of Lewis acid= BF3 < BCl3 < BBr3 < BI3 ✨11. Ionisation energy= B> Al In 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 PH3 > AsH3 > SbH3 > BiH3 ✨23. Stability of trihalides of nitrogen= NF3 > NCl3 > NBr3 ✨24.Lewis base strength= NF3 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