OXIDATION AND PEROXIDE FORMATION:

Chemical Properties OF s block elements|| Reactivity with Air ||Reaction with Oxygen Formation OF Oxides|| Peroxides|| Superoxides||Short tricks to Remember|| Reaction with Hydrogen|| Reaction with Water

Addition OF HBr in the Presence OF Peroxide (Kharasch-Peroxide Effect) || Pinacol Formation || Use OF Halogen Derivatives || NCERT Section OF Halogen Derivatives

STATEMENT-1: In CrO_(5) oxidation number of Cr is +6. STATEMENT-2 : CrO_(5) has butterfly structure in which peroxide peroxide bonds are present.

Assertion :- Oxidation number of Cr in CrO_(3) is +6 . Reason :- In CrO_(5) , four oxygen atoms are involved in peroxide linkage.

Assertion (A) The decomposition of hydrogen peroxide to form water and oxygen is an example of disproportionation reaction Reason ( R) The oxygen of peroxide is in -1 oxidation state and it is converted to zero oxidation state in O_(2) and -2 oxidation state in H_(2O .

On exposure to air, alkali metals get tranished due to formation of oxides, hydroxides and carbonates on their surface. When heated in air or oxygen they burn vigourously forming different types of oxides depending upon the nature of the metal. The formation and stability of these metals can be explained on the basis of size of alkali metal ion and the anion. Peroxides are colourless, while superoxides are coloured. The normal oxides are basic while peroxides and superoxides act as oxidising agents. Among NaO_(2), Na_(2)O_(2), Li_(2)O, CsO_(2) upaired electron is present in

Formation of LDPE using peroxide as an initiator proceeds via formation of _____________.