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Question

25 ml of a solution containing HCl and H2SO4 required 10 ml of a 1NNaOH solution for neutralization. 20 ml of the same acid mixture on being treated with an excess of AgNO3 gives 0.1435g of AgCl. The normality of the HCl and the normality of the H2SO4 are respectively :

A
0.40N and 0.05N
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B
0.05N and 0.35N
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C
0.50N and 0.25N
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D
0.40N and 0.5N
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Solution

The correct option is B 0.05N and 0.35N
Let normality of HCl is N1 and H2SO4 is N2

Mili eq. of HCl + Mili eq. of H2SO4 = Mili eq. of NaOH

25×N1+25×N2=10×1

N1+N2=0.4 .....(i)

BY POAC

Moles of Cl = moles of AgCl

20×N11000=0.1435143.5=103

N1 = 0.05N

Putting value in equation (i) we get

N2 = 0.35N

Hence, option B is correct.

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