Multiple choice Benzendiazonium chloride is synthesised by the action of SnCl2/NaOH Zn dust Ni-Al alloy/NaOH CaO/heat Ni-H2/200oC Reveal answer Fill a bubble to check yourself A Correct answer Explanation This option is correct because benzendiazonium chloride is reduced with SnCl2/NaOH to form benzene and removes nitrogen gas.