When copper metal is dipped in a solution of \[HN{{O}_{3}}\], it produces copper nitrate and some gaseous molecule, the change in oxidation number of nitrogen is
A) +2
B) +1
C) +4
D) 0
Correct Answer:
B
Solution :
Chemical reaction occur in above reaction is Charge in oxidation number \[=\,\,\,5-4=1\]