The answer of your question is True
There are two H2 .There are four nitrogen atoms present. There are two NH3 formed
The answer would have to be 5,2,4,1
It seems that you have missed to attach the given image for us to answer this question, but anyway, here is the answer. Based on the picture of a box which is motionless, the resulting motion of the box would be option B. The box will move to the left. Hope this answer helps.