Reaction of ammonia with excess Cl₂ gives :

Solution

Chemistry ma’am · 4 steps

Ask which reactant is in excess: with chlorine left over, every H on nitrogen gets swapped for Cl.

1. Two possible outcomes. Ammonia and chlorine give different products depending on which one is in excess. So first check which reagent is left over.

   Condition	Balanced reaction	Products
   Excess NH₃	8NH₃ + 3Cl₂ → 6NH₄Cl + N₂	NH₄Cl and N₂
   Excess Cl₂	NH₃ + 3Cl₂ → NCl₃ + 3HCl	NCl₃ and HCl

2. Excess chlorine. With plenty of Cl₂, all three H atoms on nitrogen are replaced by Cl, giving nitrogen trichloride, NCl₃, an explosive liquid. Each H removed leaves as HCl.
3. Why no NH4Cl. NH₄Cl forms only when spare NH₃ is left to combine with HCl. Here the ammonia is used up by chlorine, so HCl stays as it is.
4. So. Ammonia with excess chlorine gives NCl₃ and HCl, which is option (c).

The idea to keep. For NH₃ with Cl₂, excess ammonia gives NH₄Cl + N₂, and excess chlorine gives NCl₃ + HCl. NH₄Cl needs spare ammonia to form.

Answer from the NTA final answer key. Solution by PrepWiser.