Which halogen can be oxidised by concentrated nitric acid?

Explain the preparation of chlorine and describe the Deacon's process and electrolytic process for its production.

When cold $NaOH$ reacts with $Cl_2$,which of the following is formed?

Name two poisonous gases which can be prepared from chlorine gas.

Which of the following aqueous acids is the most acidic?

Select the correct set of species which cannot react with water but react with $NaOH$:
$(i) \, NO_2$ $(ii) \, P_4$ $(iii) \, Al$ $(iv) \, I_2$