Chlorine reacts with ammonia and gives nitrogen. The ratio of chlorine to ammonia in this reaction is

Question

$\begin {array} {1 1} (1)\;8\: :\: 3 & \quad (2)\;3\: :\: 1 \\ (3)\;3\: :\: 8 & \quad (4)\;1\: :\: 3 \end {array}$