In marine insurance, concealment in respect to any of the following matters does not vitiate the entire contract, but merely exonerates the insurer from a loss resulting from the risk concealed:

1. (a) The national character of the insured.
2. (b) The liability of the subject matter to capture and detention.
3. (c) The liability to seizure from breach of foreign laws of trade.
4. (d) The want of necessary documents.
5. (e) The use of false and simulated papers.