In the formation reaction of $N{H}_3$ from $N_2$ and $H_2,140g$ and $40g{H}_2$ were mixed. Select the option(s) which is/are not correct.

Maximum mass of $N{H}_3$ which can be formed is 180 g.

If $N{H}_3$ formed is 85g then % yield will be 50%.

If  %  yield of reaction is 80%, then $H_2$ consumed will be  32g.

Some $N_2\left(g\right)$ will be left after the reaction.