The amount of water that should be added to 500 ml of 0.5 N solution of NaOH to give a concentration of 10 mg per ml is

Question: The amount of water that should be added to 500 ml of 0.5 N solution of NaOH to give a concentration of 10 mg per ml is

(a) 100

(b) 200

(c) 250

(d) 500

Correct Answer: (d) 500