Multiple choice Which of the following compound is formed when ammonia reacts with excess of chlorine? N2 and NH4Cl NCl3 and HCl NH4Cl and NCl3 N2 and HCl NH4Cl and HCl Reveal answer Fill a bubble to check yourself B Correct answer Explanation When ammonia reacts with excess of chlorine, nitrogen tri chloride (NCl3) and hydrogen chloride(HCl) is formed.