Dear student,
Chlorine with cold and dilute sodium hydroxide give mixture of chloride salt, hypochlorite and water.
Cl2 (l) + 2NaOH (aq) ------> NaCl+ NaClO (aq) + H2O(l)
Chlorine with hot and dilute sodium hydroxide give mixture of chloride salt, hypochlorite and water.
3 Cl2 (l) + 6 NaOH (aq)-----> 5 NaCl + NaClO3 (aq) + 3 H2O (l)
When equal volumes of Cl2 and F2 are taken, Chlorine monofluoride i.e. ClF is formed.
Cl2 + F2 ----> ClF
When Cl2 is reacted with excess F2, then Chlorine trifluoride i.e.ClF3 is formed.
Cl2 + F2 (excess) ----> ClF
Regards,