Which is stronger hno3 or hno2

HCO 2 -. Methanoate ion. Benzoic acid. Benzoate ion. Oxalate ion. Ethanoic acid. CH 3 COO. Ethanoate acetate ion. Carbonic acid. CO 3 HCO 3 -.

Hydrogen carbonate ion. Hydrosulfuric acid. Hydrogen sulfide ion. HPO 4 Hydrogen phosphate ion. Sulfite ion. Hypochlorous acid. ClO -. Hypochlorite ion. Hydrocyanic acid. Cyanide ion. Ammonium ion. Boric acid. Dihydrogen carbonate ion. Carbonate ion. PO 4 Phosphate ion. Dihydrogen borate ion. HBO 3 Hydrogen borate ion. Sulfide ion. BO 3 No reaction is occurred in this step. Add cold dilute HCl to aqueous sodium nitrite solution. It gives dilute nitrous acid and NaCl solution. Ostwald process is used in industry to production of nitric acid.

Higher temperatures and pressure are applied in the production to get a successful yield. When the temperature of the acid solution increases, nitric acid starts to decomposes to nitrogen dioxide , oxygen and water. Nitrogen dioxide NO 2 is a brown gas. But, nitrous acid is a weak acid and partially dissociate. This happens because conjugate base NO 3 - of nitric acid is more stable. Also, nitrous acid decomposes readily than nitric acid. Also, oxidation numbers of nitrogen atoms are different.

Nitric acid is a strong acid. But nitrous acid is a weak acid. Therefore acidic strength of nitric acid is much higher than nitrous acid. When oxidation number increases, acidic characteristics increases.

That is one reason why nitric acid is much acidic than nitrous acid. So nitrogen atom cannot be oxidized furthermore. HNO 2 is an oxo acid of nitrogen and it is a weak acid. Nitrous acid is used very much in organic chemistry such as amine and HNO 2 reaction.

Aqueous nitrous acid is decomposed to nitric acid when temperature is increased. So after preparation of nitrous acid, nitric acid and nitrous acid solution mixture can be given. HNO 2 does not contain carbon as a element. So HNO 2 is an inorganic compound. This decomposition increases with temperature. Therefore, we cannot store nitrous acid for long time in the laboratory.