\(\text{NH}_4\text{NO}_3\)
\(\text{N}_3\text{H}\)
Correct Answer: NH4NO3
Explanation:
In ammonium nitrate (NH4NO3), nitrogen exists in two different compounds within the same molecule:
So, nitrogen exhibits two different oxidation states (-3 and +5) in this single compound.
The other options contain nitrogen in only one oxidation state.
A wooden block of mass M lies on a rough floor. Another wooden block of the same mass is hanging from the point O through strings as shown in the figure. To achieve equilibrium, the coefficient of static friction between the block on the floor and the floor itself is