Identify the product obtained when phenol is reacted with dilute nitric acid at low temperature.

For an elementary reaction

$$2 \mathrm{~A}+\mathrm{B} \longrightarrow 3 \mathrm{C}$$

rate of appearance of $$\mathrm{C}$$ is $$1.3 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$$, the rate of disappearance of $$\mathrm{A}$$ is:

Which among the following alkenes is most stable?

Identify a CORRECT formula for spin only magnetic moment.