In: Chemistry
1) Oxidation refers to...
a) an increase in Oxidation number. b) a decrease in Oxidation
number. c)an increase in atomic number. d) an increase in mas.
1) Oxidation refer to
a) increase in oxidation number
Explanation -
Oxidation and reduction reaction are co-occure if one element oxidized another reduced.
Oxidation is loss of electron or increasing in oxidation state and reduction is gain of electron or decrease in oxidation state
loss of electron in oxidation process take place by gaining of electron by reduction in process that mean loss of electron and gain of electron co-occure thus, oxidation and reduction co-occure.
Number of electron loss in oxidation is equal to number of electron gained in reduction. Oxidation state (charge) increased in oxidation is equal to oxidation state (charge)decreased in reduction.
We can show this by taking example
Net reaction
Zn(s) + Cu2+(aq) Zn2+(aq) + Cu(s)
oxidation half reaction
Zn(s) Zn2+(aq) + 2e-
in this oxidation reaction Zn oxidised Zn(0) to Zn(II) by losing 2 electron hence oxidation number increased from 0 to 2.