$KI$ when heated with conc. $H_2SO_4$ gives:

What is the main product formed when chlorine gas is passed over dry slaked lime at room temperature?

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 :

Describe the physical and chemical properties of the elements of group $17$.

Which of the following statements is correct?

When $Cl_2$ is passed through cold dil. $NaOH$,the products are: