Question

If pH of solution of NaOH is 12.0 the pH of H2SO4 solution of same molarity will be ____________

(a) 2.0

(b) 12.0

(c) 1.7

(d) 10.0387

I got this question in an interview for internship.

Question is from Tricky Questions and Answers topic in division Regulation of Gene Expression and Miscellaneous of Biochemistry

Answer 1

Right option is (c) 1.7

Easy explanation: pH = 12 then pOH = 2

[OH^–] = 10^-2

Molarity of NaOH = 10^-2

For H2SO4, molarity = 10^-2

[H^+] = 2 × 10^-2

pH = 2 – log2 = 1.7.