Q.

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

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a

1.5M

b

0.75M

c

2.5M

d

1.25M

answer is B.

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Detailed Solution

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proton concentration is Normality(N).

For proton, N=Molarity.

N=V1N1+V2N2+V3N3V   = 200(2N)+300(3N)+100(2N)1000   =1.5N=1.5M

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