As he is my boss and also senior he must have more knowledge than me and though if he will be crazy about a thing I will try prove what is the right and false carefully.

In my view, “Boss is always right”. If he takes a decision with his vast experience, then I will support him, but if he asks me about my point-of-view on his decision then I will honestly tell him about my own idea of his decision so that he could take a better decision.