75 ml of N/5 H2SO4 10 ml of N/2 HCl and 30 ml of N/10 HNO3 are mixed together. The strength of the resulting acid mixture is

Question

75 ml of \(\frac N5\)H₂SO₄ 10 ml of \(\frac N2\)HCl and 30 ml of \(\frac N{10}\)HNO₃ are mixed together. The strength of the resulting acid mixture is

(a) 0.2 N

(b) 0.3 N

(c) 0.4 N

(d) 0.1 N

Answer 1

Correct option is (a) 0.2 N

N₁V₁ + N₂V₂ + N₃V₃ = NV

\(\frac 15 \times 75 + \frac 12 \times 10 + \frac 1{10} \times 30 = N \times 115\)

\(N = 0.2\)