4.14 g of pure lead was dissolved in nitric acid and was made to react with HCl, Cl2 and NH4Cl to convert lead completely into (NH4) 2PbCl6 . However, only 2.28 g of (NH4) 2PbCl6 was actually produced. The percentage yield of the product is. (Atomic wt. of Pb = 207)
(A) 75
(B) 37.5
(C) 50
(D) 25
