Is there a way I can make a question manditory before the person submits the form?

Hi,

You can set any field to be required before submission is allowed.  Simply click on the field in the form builder, click on the little gear in the top right of the field to open the options for that field, then click on "Required":

This will allow you to require and field you would like.

Let us know if you have any further questions and we will be happy to help.