Most stable compound among the following is

Which substance eliminates bromine from $KBr$ solution?

Fluorine is a stronger oxidising agent than chlorine because :
$(a)$ $F-F$ bond has a low enthalpy of dissociation.
$(b)$ Fluoride ion $(F^{-})$ has high hydration enthalpy.
$(c)$ Electron gain enthalpy of fluorine is less negative than chlorine.
$(d)$ Fluorine has a very small size.
Choose the most appropriate answer from the options given :

Which of the following reacts most slowly with nitric acid?

Which among the following is the strongest acid?

The sublimate formed during the process of sublimation of $Hg_2Cl_2$ with $NaCl$ is .........