1079 - Chemistry

Question : Choose the correct statement for a solution of H3PO4 (49gm/500ml).

1. 1.5N is more concentrated than 1.5M solution.
2. 1.5N is less concentrated than 1.5M solution.
3. 1.5N is more concentrated than 1.5M former contains large amount of solution.
4. 1.5N and 1.5M solution having same.