Conc. Nitric acid is stronger oxidising agent than dil. Nitric acid. Why?
Answers
Answer:
Explanation:
an oxidizing agent is a chemical substance that removes one or more electrons from another atom
Conc Nitric acid reacts with copper
4 HNO3 + Cu ==> Cu(NO3)2 + 2 NO2 + 2 H2O
Oxidation state(OS)of nitrogen is +5 in reactants
And in products it is
Nitrate -1
NO2 +4
Dil Nitric acid reacts with copper
3Cu + 8HNO3 ==> 3Cu(NO3)2+ 2NO + 4H2O
OS of nitrogen is +5 in reactants
And in products it is
Nitrate -1
NO +2
The oxidation states which are mentioned are for nitrogen only.
Since conc nitric acid gives a product of nitrogen which has more oxidation number than the product of diluted nitric acid
Conc HNo3 is a strong oxidizing agent than dil HNo3
Similar results are observed when
H2S gas is bubbled through dilute and concentrated HNO3.
Dilute HNo3 gives NO and a colorless solution becomes turbid due to formation of colloidal solution with sulphur
Conc HNO3 gives NO2
Cheers!!
plz mark me as brainliest plz
because it is strong acid with high percentage of acid which is used as a fertilizer where as dilute nitric acid is weak acid with low percentage of acid