200 ml of 1M H2SO4, 300 ml 3M HCl and 100 ml of 2M HCl are mixed and made up to 1 litre. The proton concentration in the resulting solution is

sample A (H2SO4)              sample B (HCl)                sample C(HCl)V1 = 200ml                             V2=300ml                          V3=100mlN1 = 1(2)=2N                         N2 = 3(1)=3N                       N3 = 2(1)=2NSolution is made up to 1lit  i.e  Vtotal = 1000mlProton concentration, [H+] = Normality of the mixture[H+] =1.5M