What is the geometry of $$\mathrm{SbF}_5$$ molecule?

Identify the product $$(\mathrm{A})$$ obtained in the following reaction.

$$\text { Phenol + concentrated Nitric acid } \xrightarrow[\mathrm{H}_2 \mathrm{SO}_4]{\text { concectrated }} \mathrm{A}$$

What is the volume occupied by particles in $$\mathrm{BCC}$$ structure if '$$\mathrm{a}$$' is edge length of unit cell?

A reaction is first order with respective to $$\mathrm{A}$$ and second order with respective to $$\mathrm{B}$$. What is the effect on reaction rate if concentration of B is increased 3 times?