oxidising agents

OK !! I can help u on this

replying in half an hou or so..have patience

actually....NaBH₄...is not a oxidising agent...

and CrO₃/H+ is known as jones reagent....

Jones Oxidation

The Jones Oxidation allows a relatively inexpensive conversion of secondary alcohols to ketones and of most primary alcohols to carboxylic acids. The oxidation of primary allylic and benzylic alcohols gives aldehydes.

and OsO₄ is a more powerful oxidizing agent than the halogens. It oxidizes the halides (Cl-(aq), Br-(aq), I-(aq)) to their respective halogens.
rxn follows::

2 Cl- _(aq) --→ Cl₂

OsO₄ + 2 OH- _(aq)--→ [OsO₄(OH)₂]2- _{[deep red]}

and...KMnO₄--
Dilute solutions of KMnO4 convert alkenes into diols (glycols). This behaviour is also used as a qualitative test for the presence of double or triple bonds in a molecule, since the reaction decolourises the permanganate solution; thus it is sometimes referred to as Baeyer's reagent.

Potassium permanganate oxidizes aldehydes to carboxylic acids, such as the conversion of n-heptanal to heptanoic acid:

C₆H₁₃CHO + [O] → C₆H₁₃COOH

and there are many oxidising agents such as...
Acetone,
Bleach,
N-Bromosuccinimide
3-Chloroperoxybenzoic acid
Chromium compounds
Chromium trioxide
Collins Reagent
Corey-Suggs Reagent
Copper compounds
Ferric Chloride
Ferric Nitrate
Formic Acid
Hydrogen peroxide
Hydrogen peroxide urea adduct
Iodobenzene dichloride
Iron(III), (V) and (IV)
Jones Reagent
Manganese compounds
Manganese(IV) oxide
Nitric Acid
Osmium tetroxide
Oxalyl chloride
Oxone
Oxygen
Ozone
Potassium ferricyanide
Potassium permanganate
Sodium bromate
Sodium chlorite
Sodium hypochlorite
Sodium periodate
Vanadium compounds
Water